diff --git a/frontend/src/app.sass b/frontend/src/app.sass
index 29763b0fd..793c0f393 100644
--- a/frontend/src/app.sass
+++ b/frontend/src/app.sass
@@ -425,6 +425,7 @@ input[type="button"].btn-info:not(.btn-link):hover,
   padding-bottom: 10px
   font-weight: bold
   text-align: left
+  vertical-align: middle
 
   a
     color: white
diff --git a/frontend/src/services/util-registry/util-registry.js b/frontend/src/services/util-registry/util-registry.js
index 346dda06f..57789622e 100644
--- a/frontend/src/services/util-registry/util-registry.js
+++ b/frontend/src/services/util-registry/util-registry.js
@@ -115,6 +115,7 @@ export class UtilRegistry {
         } catch(err) {
           if (DEBUG_MODE > 0) {
             console.error('Error while trying to initialize a utility!', { util , element, err });
+            console.error(err.stack);
           }
           utilInstance = null;
         }
diff --git a/frontend/src/utils/check-all/check-all.js b/frontend/src/utils/check-all/check-all.js
index 7922cd3ee..6c7a8e441 100644
--- a/frontend/src/utils/check-all/check-all.js
+++ b/frontend/src/utils/check-all/check-all.js
@@ -8,13 +8,10 @@ const CHECK_ALL_INITIALIZED_CLASS = 'check-all--initialized';
   selector: 'table:not([uw-no-check-all])',
 })
 export class CheckAll {
-
   _element;
-  _app;
 
   _columns = [];
-  _checkboxColumn = [];
-  _checkAllCheckbox = null;
+  _checkAllColumns = [];
 
   constructor(element, app) {
     if (!element) {
@@ -22,80 +19,81 @@ export class CheckAll {
     }
 
     this._element = element;
-    this._app = app;
 
     if (this._element.classList.contains(CHECK_ALL_INITIALIZED_CLASS)) {
       return false;
     }
 
     this._gatherColumns();
-    this._setupCheckAllCheckbox();
+    this._findCheckboxColumns().forEach(columnId => this._checkAllColumns.push(new CheckAllColumn(this._element, app, this._columns[columnId])));
 
     // mark initialized
     this._element.classList.add(CHECK_ALL_INITIALIZED_CLASS);
   }
 
-  destroy() {
-    this._checkAllCheckbox.destroy();
-  }
-
-  _getCheckboxId() {
-    return 'check-all-checkbox-' + Math.floor(Math.random() * 100000);
-  }
-
   _gatherColumns() {
-    const rows = Array.from(this._element.querySelectorAll('tr'));
+    const rows = Array.from(this._element.rows);
     const cols = [];
     rows.forEach((tr) => {
-      const cells = Array.from(tr.querySelectorAll('td'));
-      cells.forEach((cell, cellIndex) => {
-        if (!cols[cellIndex]) {
-          cols[cellIndex] = [];
+      const cells = Array.from(tr.cells);
+      cells.forEach(cell => {
+        let i = 0;
+        for (const sibling of cells.slice(0, cell.cellIndex))
+          i += Math.max(1, sibling.colSpan) || 1;
+
+        for (let j = i; j < i + cell.colSpan; j++) {
+          if (!cols[j]) {
+            cols[j] = [];
+          }
+          cols[j].push(cell);
         }
-        cols[cellIndex].push(cell);
       });
     });
     this._columns = cols;
   }
 
-  _findCheckboxColumn(columns) {
-    let checkboxColumnId = null;
-    columns.forEach((col, i) => {
+  _findCheckboxColumns() {
+    let checkboxColumnIds = [];
+    this._columns.forEach((col, i) => {
       if (this._isCheckboxColumn(col)) {
-        checkboxColumnId = i;
+        checkboxColumnIds.push(i);
       }
     });
-    return checkboxColumnId;
+    return checkboxColumnIds;
   }
 
   _isCheckboxColumn(col) {
-    let onlyCheckboxes = true;
-    col.forEach((cell) => {
-      if (onlyCheckboxes && !cell.querySelector(CHECKBOX_SELECTOR)) {
-        onlyCheckboxes = false;
-      }
-    });
-    return onlyCheckboxes;
+    return col.every(cell => cell.tagName == 'TH' || cell.querySelector(CHECKBOX_SELECTOR))
+      && col.some(cell => cell.querySelector(CHECKBOX_SELECTOR));
   }
+}
 
-  _setupCheckAllCheckbox() {
-    const checkboxColumnId = this._findCheckboxColumn(this._columns);
-    if (checkboxColumnId === null) {
-      return;
-    }
+class CheckAllColumn {
+  _app;
+  _table;
+  _column;
+  
+  _checkAllCheckbox;
+  _checkboxId = 'check-all-checkbox-' + Math.floor(Math.random() * 100000);
+  
+  constructor(table, app, column) {
+    this._column = column;
+    this._table = table;
+    this._app = app;
+
+    const th = this._column.filter(element => element.tagName == 'TH')[0];
+    if (!th)
+      return false;
 
-    this._checkboxColumn = this._columns[checkboxColumnId];
-    const firstRow = this._element.querySelector('tr');
-    const th = Array.from(firstRow.querySelectorAll('th, td'))[checkboxColumnId];
     this._checkAllCheckbox = document.createElement('input');
     this._checkAllCheckbox.setAttribute('type', 'checkbox');
-    this._checkAllCheckbox.setAttribute('id', this._getCheckboxId());
+    this._checkAllCheckbox.setAttribute('id', this._checkboxId);
     th.insertBefore(this._checkAllCheckbox, th.firstChild);
 
     // set up new checkbox
     this._app.utilRegistry.initAll(th);
 
-    this._checkAllCheckbox.addEventListener('input', () => this._onCheckAllCheckboxInput());
+    this._checkAllCheckbox.addEventListener('input', this._onCheckAllCheckboxInput.bind(this));
     this._setupCheckboxListeners();
   }
 
@@ -104,23 +102,25 @@ export class CheckAll {
   }
 
   _setupCheckboxListeners() {
-    this._checkboxColumn.map((cell) => {
-        return cell.querySelector(CHECKBOX_SELECTOR);
-      })
-      .forEach((checkbox) => {
-        checkbox.addEventListener('input', () => this._updateCheckAllCheckboxState());
-      });
+    this._column
+      .flatMap(cell => cell.tagName == 'TH' ? new Array() : Array.from(cell.querySelectorAll(CHECKBOX_SELECTOR)))
+      .forEach(checkbox =>
+               checkbox.addEventListener('input', this._updateCheckAllCheckboxState.bind(this))
+              );
   }
 
   _updateCheckAllCheckboxState() {
-    const allChecked = this._checkboxColumn.every((cell) => {
-      return cell.querySelector(CHECKBOX_SELECTOR).checked;
-    });
+    const allChecked = this._column.every(cell =>
+      cell.tagName == 'TH' || cell.querySelector(CHECKBOX_SELECTOR).checked
+    );
     this._checkAllCheckbox.checked = allChecked;
   }
 
   _toggleAll(checked) {
-    this._checkboxColumn.forEach((cell) => {
+    this._column.forEach(cell => {
+      if (cell.tagName == 'TH')
+        return;
+
       cell.querySelector(CHECKBOX_SELECTOR).checked = checked;
     });
   }
diff --git a/frontend/src/utils/hide-columns/hide-columns.js b/frontend/src/utils/hide-columns/hide-columns.js
index c9b2dc94b..29a99670a 100644
--- a/frontend/src/utils/hide-columns/hide-columns.js
+++ b/frontend/src/utils/hide-columns/hide-columns.js
@@ -1,11 +1,13 @@
 import { Utility } from '../../core/utility';
 import { StorageManager, LOCATION } from '../../lib/storage-manager/storage-manager';
 import './hide-columns.sass';
+import * as memoize from 'lodash.memoize';
 
 const HIDE_COLUMNS_CONTAINER_IDENT = 'uw-hide-columns';
 const TABLE_HEADER_IDENT = 'uw-hide-column-header';
 const HIDE_COLUMNS_HIDER_LABEL = 'uw-hide-columns--hider-label';
 const HIDE_COLUMNS_NO_HIDE = 'uw-hide-columns--no-hide';
+const HIDE_COLUMNS_DEFAULT_HIDDEN = 'uw-hide-column-default-hidden';
 
 const TABLE_UTILS_ATTR = 'table-utils';
 const TABLE_UTILS_CONTAINER_SELECTOR = `[${TABLE_UTILS_ATTR}]`;
@@ -18,6 +20,8 @@ const TABLE_PILL_CLASS = 'table-pill';
 const CELL_HIDDEN_CLASS = 'hide-columns--hidden-cell';
 const CELL_ORIGINAL_COLSPAN = 'uw-hide-column-original-colspan';
 
+const HIDE_COLUMNS_INITIALIZED = 'uw-hide-columns--initialized';
+
 @Utility({
   selector: `[${HIDE_COLUMNS_CONTAINER_IDENT}] table`,
 })
@@ -44,14 +48,15 @@ export class HideColumns {
   constructor(element) {
     this._autoHide  = this._storageManager.load('autoHide', {}) || false;
 
-    if (!element) {
+    if (!element)
       throw new Error('Hide Columns utility cannot be setup without an element!');
-    }
 
     // do not provide hide-column ability in tables inside modals, async forms with response or tail.datetime instances
-    if (element.closest('[uw-modal], .async-form__response, .tail-datetime-calendar')) {
+    if (element.closest('[uw-modal], .async-form__response, .tail-datetime-calendar'))
+      return false;
+
+    if (element.classList.contains(HIDE_COLUMNS_INITIALIZED))
       return false;
-    }
 
     this._element = element;
 
@@ -74,10 +79,12 @@ export class HideColumns {
 
     this._mutationObserver = new MutationObserver(this._tableMutated.bind(this));
     this._mutationObserver.observe(this._element, { childList: true, subtree: true });
+
+    this._element.classList.add(HIDE_COLUMNS_INITIALIZED);
   }
 
   setupHideButton(th) {
-    const preHidden = this.isHiddenColumn(th);
+    const preHidden = this.isHiddenTH(th);
 
     const hider = document.createElement('span');
 
@@ -104,20 +111,20 @@ export class HideColumns {
     hider.addEventListener('click', (event) => {
       event.preventDefault();
       event.stopPropagation();
-      this.switchColumnDisplay(th, hider);
+      this.switchColumnDisplay(th);
       // this._tableHiderContainer.getElementsByClassName(TABLE_HIDER_CLASS).forEach(hider => this.hideHiderBehindHeader(hider));
     });
 
     hider.addEventListener('mouseover', () => {
       hider.classList.add(TABLE_HIDER_VISIBLE_CLASS);
-      const currentlyHidden = this.isHiddenColumn(th);
+      const currentlyHidden = this.hiderStatus(th);
       this.updateHiderIcon(hider, !currentlyHidden);
     });
     hider.addEventListener('mouseout', () => {
       if (hider.classList.contains(TABLE_HIDER_CLASS)) {
         hider.classList.remove(TABLE_HIDER_VISIBLE_CLASS);
       }
-      const currentlyHidden = this.isHiddenColumn(th);
+      const currentlyHidden = this.hiderStatus(th);
       this.updateHiderIcon(hider, currentlyHidden);
     });
 
@@ -126,64 +133,76 @@ export class HideColumns {
     // reposition hider on each window resize event
     // window.addEventListener('resize', () => this.repositionHider(hider));
 
-    this.updateColumnDisplay(this.colIndex(th), preHidden);
-    this.updateHider(hider, preHidden);
-
-    if (preHidden) {
-      this._tableUtilContainer.appendChild(hider);
-    } else {
-      this.hideHiderBehindHeader(hider);
-    }
+    this.switchColumnDisplay(th, preHidden);
   }
 
-  switchColumnDisplay(th, hider) {
-    const hidden = !this.isHiddenColumn(th);
-    const originalColspan = Math.max(1, th.getAttribute(CELL_ORIGINAL_COLSPAN)) || 1;
-    const colspan = Math.max(1, th.colSpan) || 1;
-    const columnIndex = this.colIndex(th);
+  switchColumnDisplay(th, hidden) {
+    hidden = typeof(hidden) === 'undefined' ? !this.isHiddenTH(th) : !!hidden;
 
-    for (let i = 0; i < Math.max(colspan, originalColspan); i++) {
-      this.updateColumnDisplay(columnIndex + i, hidden);
-    }
-    this.updateHider(hider, hidden);
-
-    // persist new hidden setting for column
-    if ((hidden && this.isEmptyColumn(columnIndex) && this._autoHide) || (!hidden && (!this.isEmptyColumn(columnIndex) || !this._autoHide))) {
-      this._storageManager.remove(this.getStorageKey(th));
-    } else {
-      this._storageManager.save(this.getStorageKey(th), hidden);
-    }
+    this.cellColumns(th).forEach(columnIndex => this.updateColumnDisplay(columnIndex, hidden));
   }
 
   updateColumnDisplay(columnIndex, hidden) {
-    this._element.getElementsByTagName('tr').forEach(row => {
+    // console.debug('updateColumnDisplay', { columnIndex, hidden });
+    this._element.rows.forEach(row => {
       const cell = this.getCol(row, columnIndex);
 
       if (cell) {
         const originalColspan = cell.getAttribute(CELL_ORIGINAL_COLSPAN);
         const colspan = Math.max(1, cell.colSpan) || 1;
+        const visibleColumns = this.cellColumns(cell).reduce((count, cColumnIndex) => (cColumnIndex === columnIndex ? hidden : this.isHiddenColumn(cColumnIndex)) ? count : count + 1, 0);
 
-        if (hidden) {
-          if (colspan > 1) {
+        // if (cell.tagName === 'TH') {
+        //   console.debug({cell, originalColspan, colspan, visibleColumns, isHidden: cell.classList.contains(CELL_HIDDEN_CLASS)});
+        // }
+
+
+        if (visibleColumns <= 0) {
+          cell.classList.add(CELL_HIDDEN_CLASS);
+        } else {
+          cell.classList.remove(CELL_HIDDEN_CLASS);
+
+          if (colspan !== visibleColumns) {
             if (!originalColspan) {
               cell.setAttribute(CELL_ORIGINAL_COLSPAN, colspan);
             }
-            cell.colSpan--;
-          } else {
-            cell.classList.add(CELL_HIDDEN_CLASS);
-          }
-        } else {
-          if (cell.classList.contains(CELL_HIDDEN_CLASS)) {
-            cell.classList.remove(CELL_HIDDEN_CLASS);
-          } else if (originalColspan && colspan < originalColspan) {
-            cell.colSpan++;
+            cell.colSpan = visibleColumns;
           }
         }
       }
     });
+
+    const touchedColumns = new Array();
+
+    this.columnTHs(columnIndex)
+      .forEach(th => {
+        touchedColumns.push(...this.cellColumns(th));
+
+        if (!this._element.classList.contains(HIDE_COLUMNS_INITIALIZED))
+          return;
+
+        const thHidden = this.cellColumns(th).every(cColumnIndex => cColumnIndex === columnIndex ? hidden : this.isHiddenColumn(cColumnIndex));
+        // persist new hidden setting for column
+        if (thHidden == this.isDefaultHiddenTH(th)) {
+          this._storageManager.remove(this.getStorageKey(th));
+        } else {
+          this._storageManager.save(this.getStorageKey(th), thHidden);
+        }
+      });
+
+    touchedColumns.flatMap(cColumnIndex => this.columnTHs(cColumnIndex))
+      .forEach(th => {
+        const hider = this.headerToHider.get(th);
+        if (!hider)
+          return;
+        
+        this.updateHider(hider, this.hiderStatus(th));
+      });
   }
 
   updateHider(hider, hidden) {
+    // console.debug({hider, hidden, columnIndex: this.colIndex(this.hiderToHeader.get(hider)), colSpan: this.colSpan(this.hiderToHeader.get(hider))});
+    
     if (hidden) {
       hider.classList.remove(TABLE_HIDER_CLASS);
       hider.classList.add(TABLE_PILL_CLASS);
@@ -223,12 +242,21 @@ export class HideColumns {
   }
 
   _tableMutated(mutationList) {
-    // console.log('_tableMutated', mutationList, observer);
-    
     if (!Array.from(mutationList).some(mutation => mutation.type === 'childList'))
       return;
 
-    [...this._element.querySelectorAll('th')].filter(th => !th.hasAttribute(HIDE_COLUMNS_NO_HIDE)).forEach(th => this.updateColumnDisplay(this.colIndex(th), this.isHiddenColumn(th)));
+    if (Array.from(mutationList).every(mRecord => mRecord.type === 'childList' && [...mRecord.addedNodes, ...mRecord.removedNodes].every(isTableHider)))
+      return;
+
+    // console.debug('_tableMutated', { mutationList });
+
+    this._colIndexMemoized = undefined;
+    this._getColMemoized = undefined;
+
+    Array.from(this._element.rows)
+      .flatMap(row => Array.from(row.cells))
+      .filter(th => th.tagName === 'TH' && !th.hasAttribute(HIDE_COLUMNS_NO_HIDE))
+      .forEach(th => this.updateColumnDisplay(this.colIndex(th), this.isHiddenTH(th)));
   }
 
   getStorageKey(th) {
@@ -257,9 +285,9 @@ export class HideColumns {
   }
 
   isEmptyColumn(columnIndex) {
-    for (let row of this._element.getElementsByTagName('tr')) {
+    for (let row of this._element.rows) {
       const cell = this.getCol(row, columnIndex);
-      if (cell.matches('th'))
+      if (!cell || cell.tagName == 'TH')
         continue;
       if (cell.querySelector('.table__td-content')) {
         for (let child of cell.children) {
@@ -273,10 +301,47 @@ export class HideColumns {
     }
   }
 
-  isHiddenColumn(th) {
-    const hidden      = this._storageManager.load(this.getStorageKey(th)),
-          emptyColumn = this.isEmptyColumn(this.colIndex(th));
-    return hidden === true || hidden === undefined && emptyColumn && this._autoHide;
+  columnTHs(columnIndex) {
+    return Array.from(this._element.rows)
+      .map(row => this.getCol(row, columnIndex))
+      .filter(cell => cell && cell.tagName === 'TH');
+  }
+
+  cellColumns(cell) {
+    const columnIndex = this.colIndex(cell);
+    return Array.from(new Array(this.colSpan(cell)), (_x, i) => columnIndex + i);
+  }
+
+  isHiddenTH(th) {
+    return this.cellColumns(th).every(columnIndex => this.isHiddenColumn(columnIndex));
+  }
+
+  hiderStatus(th) {
+    const columnsHidden = this.isHiddenTH(th);
+    const shadowed = this.cellColumns(th).every(columnIndex => this.isHiddenColumn(columnIndex, this.columnTHs(columnIndex).filter(oTH => oTH !== th)));
+    const isFirst = this.cellColumns(th).some(columnIndex => this.columnTHs(columnIndex)[0] === th);
+
+    // console.debug("hiderStatus", { th, columnsHidden, shadowed, isFirst });
+
+    return columnsHidden && (!shadowed || isFirst);
+  }
+  
+  isDefaultHiddenTH(th) {
+    return this.cellColumns(th).every(columnIndex => this.isDefaultHiddenColumn(columnIndex, Array.of(th)));
+  }
+
+  isHiddenColumn(columnIndex, ths) {
+    ths = ths === undefined ? this.columnTHs(columnIndex) : ths;
+
+    const hidden = ths.map(th => this._storageManager.load(this.getStorageKey(th)));
+
+    return hidden.every(h => h === undefined) ? this.isDefaultHiddenColumn(columnIndex, ths) : hidden.some(h => h);
+  }
+
+  isDefaultHiddenColumn(columnIndex, ths) {
+    ths = ths === undefined ? this.columnTHs(columnIndex) : ths;
+
+    return this.isEmptyColumn(columnIndex) && this._autoHide || ths.some(th => th.hasAttribute(HIDE_COLUMNS_DEFAULT_HIDDEN));
   }
 
   colSpan(cell) {
@@ -289,7 +354,7 @@ export class HideColumns {
     return originalColspan ? Math.max(colspan, originalColspan) : colspan;
   }
 
-  colIndex(cell) {
+  colIndexDirect(cell) {
     if (!cell)
       return 0;
 
@@ -298,23 +363,62 @@ export class HideColumns {
     if (!rowParent)
       return 0;
 
-    let i = 0;
-    for (const sibling of Array.from(rowParent.cells).slice(0, cell.cellIndex)) {
-      i += this.colSpan(sibling);
+    let rowBefore = 0;
+    for (const cell of Array.from(rowParent.cells).slice(0, cell.cellIndex)) {
+      if (!cell)
+        continue;
+
+      rowBefore += this.colSpan(cell);
     }
 
+    let i = 0;
+    for (const pRow of Array.from(this._element.rows).slice(0, rowParent.rowIndex + 1)) {
+      if (!pRow)
+        continue;
+
+      let space = 0;
+      for (const cell of pRow === rowParent ? Array.from(pRow.cells).slice(0, cell.cellIndex) : pRow.cells) {
+        if (!cell)
+          continue;
+
+        const rowSpan = cell.rowSpan || 1;
+        if (rowParent.rowIndex - pRow.rowIndex < rowSpan)
+          i += this.colSpan(cell);
+        else if (pRow !== rowParent)
+          space += this.colSpan(cell);
+
+        if (space > rowBefore)
+          break;
+      }
+    }
+
+    // console.debug({ rowParent, cell, rowBefore, i });
+
     return i;
   }
 
-  getCol(row, columnIndex) {
-    let c = 0;
+  _colIndexMemoized;
 
-    for (const cell of row.cells) {
-      c += cell ? this.colSpan(cell) : 1;
+  colIndex(cell) {
+    if (!this._colIndexMemoized)
+      this._colIndexMemoized = memoize(this.colIndexDirect.bind(this));
 
-      if (columnIndex < c)
+    return this._colIndexMemoized(cell);
+  }
+
+  getColDirect(row, columnIndex) {
+    for (const cell of row.cells)
+      if (cell && this.colIndex(cell) <= columnIndex && this.colIndex(cell) + this.colSpan(cell) > columnIndex)
         return cell;
-    }
+  }
+
+  _getColMemoized;
+
+  getCol(row, columnIndex) {
+    if (!this._getColMemoized)
+      this._getColMemoized = memoize(this.getColDirect.bind(this), (row, columnIndex) => Array.of(row.rowIndex, columnIndex).toString());
+
+    return this._getColMemoized(row, columnIndex);
   }
 }
 
@@ -326,3 +430,8 @@ function isEmptyElement(element) {
   return true;
 }
 
+function isTableHider(element) {
+  return element.classList.contains(TABLE_HIDER_CLASS)
+    || element.classList.contains(TABLE_HIDER_VISIBLE_CLASS)
+    || element.classList.contains(TABLE_PILL_CLASS);
+}
diff --git a/messages/uniworx/de-de-formal.msg b/messages/uniworx/de-de-formal.msg
index 486bf31ae..ac81efc23 100644
--- a/messages/uniworx/de-de-formal.msg
+++ b/messages/uniworx/de-de-formal.msg
@@ -2599,6 +2599,7 @@ CourseParticipantActive: Teilnehmer
 CourseParticipantInactive: Abgemeldet
 CourseParticipantNoShow: Nicht erschienen
 CourseUserState: Zustand
+CourseUserSheets: Übungsblätter
 
 TestDownload: Download-Test
 TestDownloadMaxSize: Maximale Dateigröße
diff --git a/messages/uniworx/en-eu.msg b/messages/uniworx/en-eu.msg
index 386421505..6fe436270 100644
--- a/messages/uniworx/en-eu.msg
+++ b/messages/uniworx/en-eu.msg
@@ -2599,6 +2599,7 @@ CourseParticipantActive: Participant
 CourseParticipantInactive: Deregistered
 CourseParticipantNoShow: No show
 CourseUserState: State
+CourseUserSheets: Exercise sheets
 
 TestDownload: Download test
 TestDownloadMaxSize: Maximum filesize
diff --git a/src/Handler/Course/Users.hs b/src/Handler/Course/Users.hs
index b50644b09..4297bb253 100644
--- a/src/Handler/Course/Users.hs
+++ b/src/Handler/Course/Users.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -fno-warn-orphans -fno-warn-redundant-constraints #-}
 
 module Handler.Course.Users
   ( queryUser
@@ -98,6 +98,7 @@ type UserTableData = DBRow ( Entity User
                            , ([Entity Tutorial], Map (CI Text) (Maybe (Entity Tutorial)))
                            , [Entity Exam]
                            , Maybe (Entity SubmissionGroup)
+                           , Map SheetName (SheetType, Maybe Points)
                            )
 
 instance HasEntity UserTableData User where
@@ -130,13 +131,15 @@ _userExams = _dbrOutput . _6
 _userSubmissionGroup :: Traversal' UserTableData (Entity SubmissionGroup)
 _userSubmissionGroup = _dbrOutput . _7 . _Just
 
+_userSheets :: Lens' UserTableData (Map SheetName (SheetType, Maybe Points))
+_userSheets = _dbrOutput . _8
+
 
 colUserComment :: IsDBTable m c => TermId -> SchoolId -> CourseShorthand -> Colonnade Sortable UserTableData (DBCell m c)
 colUserComment tid ssh csh =
-    sortable (Just "note") (i18nCell MsgCourseUserNote)
-      $ \DBRow{ dbrOutput=(Entity uid _, _, mbNoteKey, _, _, _, _) } ->
-        maybeEmpty mbNoteKey $ const $
-          anchorCellM (courseLink <$> encrypt uid) (hasComment True)
+    sortable (Just "note") (i18nCell MsgCourseUserNote) $ views (_dbrOutput . $(multifocusG 2) (_1 . _entityKey) _3) $ \(uid, mbNoteKey) -> 
+                                                                                                                           maybeEmpty mbNoteKey $ const $
+         anchorCellM (courseLink <$> encrypt uid) (hasComment True)
   where
     courseLink = CourseR tid ssh csh . CUserR
 
@@ -183,6 +186,20 @@ colUserSubmissionGroup :: IsDBTable m c => Colonnade Sortable UserTableData (DBC
 colUserSubmissionGroup = sortable (Just "submission-group") (i18nCell MsgSubmissionGroup) $
   foldMap (cell . toWidget) . preview (_userSubmissionGroup . _entityVal . _submissionGroupName)
 
+colUserSheets :: forall m c. IsDBTable m c => [SheetName] -> Cornice Sortable ('Cap 'Base) UserTableData (DBCell m c)
+colUserSheets shns = cap (Sortable Nothing caption) $ foldMap userSheetCol shns
+  where
+    caption = i18nCell MsgCourseUserSheets 
+      & cellAttrs <>~ [ ("uw-hide-column-header", "sheets")
+                      , ("uw-hide-column-default-hidden", "")
+                      ]
+    
+    userSheetCol :: SheetName -> Colonnade Sortable UserTableData (DBCell m c)
+    userSheetCol shn = sortable (Just . SortingKey $ "sheet-" <> shn) (i18nCell shn) . views (_userSheets . at shn) $ \case
+      Just (preview _grading -> Just Points{..}, Just points) -> i18nCell $ MsgAchievedOf points maxPoints
+      Just (preview _grading -> Just grading', Just points) -> i18nCell . bool MsgNotPassed MsgPassed . fromMaybe False $ gradingPassed grading' points
+      _other -> mempty
+
 
 data UserTableCsvStudyFeature = UserTableCsvStudyFeature
   { csvUserField :: Text
@@ -310,14 +327,15 @@ data CourseUserActionData = CourseUserSendMailData
   deriving (Eq, Ord, Read, Show, Generic, Typeable)
 
 
-makeCourseUserTable :: forall h act act'.
+makeCourseUserTable :: forall h p cols act act'.
                        ( Functor h, ToSortable h
                        , Ord act, PathPiece act, RenderMessage UniWorX act
+                       , AsCornice h p UserTableData (DBCell (MForm Handler) (FormResult (First act', DBFormResult UserId Bool UserTableData))) cols
                        )
                     => CourseId
                     -> Map act (AForm Handler act')
                     -> (UserTableExpr -> E.SqlExpr (E.Value Bool))
-                    -> Colonnade h UserTableData (DBCell (MForm Handler) (FormResult (First act', DBFormResult UserId Bool UserTableData)))
+                    -> cols
                     -> PSValidator (MForm Handler) (FormResult (First act', DBFormResult UserId Bool UserTableData))
                     -> Maybe (Csv.Name -> Bool)
                     -> DB (FormResult (act', Set UserId), Widget)
@@ -336,12 +354,23 @@ makeCourseUserTable cid acts restrict colChoices psValidator csvColumns = do
         dbtProj      = traverse $ \(user, participant, E.Value userNoteId, (feature,degree,terms), subGroup) -> do
           tuts'' <- selectList [ TutorialParticipantUser ==. entityKey user, TutorialParticipantTutorial <-. map entityKey tutorials ] []
           exams' <- selectList [ ExamRegistrationUser ==. entityKey user ] []
+          subs' <- E.select . E.from $ \(sheet `E.InnerJoin` (submission `E.InnerJoin` submissionUser)) -> do
+            E.on $ submissionUser E.^. SubmissionUserSubmission E.==. submission E.^. SubmissionId
+            E.on $ sheet E.^. SheetId E.==. submission E.^. SubmissionSheet
+             E.&&. submissionUser E.^. SubmissionUserUser E.==. E.val (entityKey user)
+            E.where_ $ sheet E.^. SheetCourse E.==. E.val cid
+            return ( sheet E.^. SheetName
+                   , ( sheet E.^. SheetType
+                     , submission
+                     )
+                   )
           let
             regGroups = setOf (folded . _entityVal . _tutorialRegGroup . _Just) tutorials
             tuts' = filter (\(Entity tutId _) -> any ((== tutId) . tutorialParticipantTutorial . entityVal) tuts'') tutorials
             tuts = foldr (\tut@(Entity _ Tutorial{..}) -> maybe (over _1 $ cons tut) (over _2 . flip (Map.insertWith (<|>)) (Just tut)) tutorialRegGroup) ([], Map.fromSet (const Nothing) regGroups) tuts'
             exs = filter (\(Entity eId _) -> any ((== eId) . examRegistrationExam . entityVal) exams') exams
-          return (user, participant, userNoteId, (entityVal <$> feature, entityVal <$> degree, entityVal <$> terms), tuts, exs, subGroup)
+            subs = Map.fromList $ mapMaybe (over (mapped . _2 . _2) (submissionRatingPoints . entityVal) . assertM' (views (_2 . _2 . _entityVal) submissionRatingDone) . over _1 E.unValue . over (_2 . _1) E.unValue) subs'
+          return (user, participant, userNoteId, (entityVal <$> feature, entityVal <$> degree, entityVal <$> terms), tuts, exs, subGroup, subs)
         dbtColonnade = colChoices
         dbtSorting   = mconcat
           [ single $ sortUserNameLink    queryUser -- slower sorting through clicking name column header
@@ -541,22 +570,24 @@ postCUsersR tid ssh csh = do
        E.&&. courseParticipant E.^. CourseParticipantCourse E.==. submissionGroup E.^. SubmissionGroupCourse
       E.on $ submissionGroupUser E.^. SubmissionGroupUserSubmissionGroup E.==. submissionGroup E.^. SubmissionGroupId
       E.where_ $ submissionGroup E.^. SubmissionGroupCourse E.==. E.val cid
+    sheetList <- selectList [SheetCourse ==. cid] [Desc SheetActiveTo, Desc SheetActiveFrom]
     let exams = nubOn entityKey $ examOccurrencesPerExam ^.. folded . _1
     let colChoices  = mconcat $ catMaybes
-          [ pure $ dbSelect (applying _2) id (return . view (hasEntity . _entityKey))
-          , pure $ colUserNameLink (CourseR tid ssh csh . CUserR)
-          , guardOn showSex $ colUserSex'
-          , pure $ colUserEmail
-          , pure $ colUserMatriclenr
-          , pure $ colUserDegreeShort
-          , pure $ colUserField
-          , pure $ colUserSemester
-          , guardOn hasSubmissionGroups colUserSubmissionGroup
-          , guardOn hasTutorials $ colUserTutorials tid ssh csh
-          , guardOn hasExams $ colUserExams tid ssh csh
-          , pure $ sortable (Just "registration") (i18nCell MsgRegisteredSince) (maybe mempty dateCell . preview (_Just . _userTableRegistration) . assertM' (has $ _userTableParticipant . _entityVal . _courseParticipantState . _CourseParticipantActive))
-          , pure $ sortable (Just "state") (i18nCell MsgCourseUserState) (i18nCell . view (_userTableParticipant . _entityVal . _courseParticipantState))
-          , pure $ colUserComment tid ssh csh
+          [ pure . cap' $ dbSelect (applying _2) id (return . view (hasEntity . _entityKey))
+          , pure . cap' $ colUserNameLink (CourseR tid ssh csh . CUserR)
+          , guardOn showSex . cap' $ colUserSex'
+          , pure . cap' $ colUserEmail
+          , pure . cap' $ colUserMatriclenr
+          , pure . cap' $ colUserDegreeShort
+          , pure . cap' $ colUserField
+          , pure . cap' $ colUserSemester
+          , guardOn hasSubmissionGroups $ cap' colUserSubmissionGroup
+          , guardOn hasTutorials . cap' $ colUserTutorials tid ssh csh
+          , guardOn hasExams . cap' $ colUserExams tid ssh csh
+          , pure . cap' $ sortable (Just "registration") (i18nCell MsgRegisteredSince) (maybe mempty dateCell . preview (_Just . _userTableRegistration) . assertM' (has $ _userTableParticipant . _entityVal . _courseParticipantState . _CourseParticipantActive))
+          , pure . cap' $ sortable (Just "state") (i18nCell MsgCourseUserState) (i18nCell . view (_userTableParticipant . _entityVal . _courseParticipantState))
+          , guardOn (not $ null sheetList) . colUserSheets $ map (sheetName . entityVal) sheetList
+          , pure . cap' $ colUserComment tid ssh csh
           ]
         psValidator = def & defaultSortingByName
                           & defaultFilter (singletonMap "active" [toPathPiece True])
diff --git a/src/Handler/Utils/Table/Pagination.hs b/src/Handler/Utils/Table/Pagination.hs
index 46d06d62b..de94f9949 100644
--- a/src/Handler/Utils/Table/Pagination.hs
+++ b/src/Handler/Utils/Table/Pagination.hs
@@ -42,6 +42,7 @@ module Handler.Utils.Table.Pagination
   , formCell, DBFormResult(..), getDBFormResult
   , dbSelect
   , (&)
+  , cap'
   , module Control.Monad.Trans.Maybe
   , module Colonnade
   , DBSTemplateMode(..)
@@ -59,6 +60,8 @@ import Utils.Lens
 
 import Import hiding (pi)
 
+import qualified Data.Foldable as Foldable
+
 import qualified Yesod.Form.Functions as Yesod
   
 import qualified Database.Esqueleto as E
@@ -68,12 +71,11 @@ import qualified Database.Esqueleto.Internal.Sql as E (SqlSelect,unsafeSqlValue)
 import qualified Network.Wai as Wai
 
 import Control.Monad.RWS (RWST(..), execRWS)
-import Control.Monad.State (evalStateT)
+import Control.Monad.State (evalStateT, execStateT)
 import Control.Monad.Trans.Maybe
 import Control.Monad.State.Class (modify)
 import qualified Control.Monad.State.Class as State
-
-import Data.Foldable (Foldable(foldMap))
+import Control.Monad.Trans.Writer.Lazy (censor)
 
 import Data.Map ((!))
 import qualified Data.Map as Map
@@ -90,7 +92,7 @@ import Colonnade.Encode hiding (row)
 
 import Text.Hamlet (hamletFile)
 
-import Data.List (elemIndex)
+import Data.List (elemIndex, inits)
 
 import Data.Maybe (fromJust)
 
@@ -108,7 +110,8 @@ import qualified Data.ByteString.Lazy as LBS
 
 import Data.Semigroup as Sem (Semigroup(..))
 
-import qualified Data.Conduit.List as C
+import qualified Data.Conduit.List as C (sourceList)
+import qualified Data.Conduit.Combinators as C
 
 import Handler.Utils.DateTime (formatTimeRangeW)
 import qualified Control.Monad.Catch as Catch
@@ -1136,7 +1139,7 @@ dbTable PSValidator{..} dbtable@DBTable{ dbtIdent = dbtIdent'@(toPathPiece -> db
                                  | otherwise
                                  = id
                             in C.sourceList <=< lift . doHandle . runConduit $ dbtCsvComputeActions x .| C.foldMap pure
-                  innerAct .| C.fold accActionMap Map.empty
+                  innerAct .| C.foldl accActionMap Map.empty
               actionMap <- flip evalStateT Map.empty . runConduit $ sourceDiff .| transPipe lift dbtCsvComputeActions'
 
               when (Map.null actionMap) $ do
@@ -1266,12 +1269,47 @@ dbTable PSValidator{..} dbtable@DBTable{ dbtIdent = dbtIdent'@(toPathPiece -> db
           DBSTDefault{..} -> dbstmNumber rowCount
           _other -> False
 
-        genHeaders :: _ -> [WriterT x m Widget]
-        genHeaders SortableP{..} = flip (headersMonoidal Nothing) (annotate $ dbtColonnade ^. _Cornice) $ pure
-          ( \Sized{ sizedSize, sizedContent = toSortable -> Sortable{..} } -> pure $ do
+        genHeaders :: forall h. Cornice h _ _ (DBCell m x) -> SortableP h -> WriterT x m Widget
+        genHeaders cornice SortableP{..} = execWriterT . go mempty $ annotate cornice
+          where
+            go :: forall (p' :: Pillar) r'.
+                  [(Int, Int, Int)]
+               -> AnnotatedCornice (Maybe Int) h p' r' (DBCell m x)
+               -> WriterT Widget (WriterT x m) ()
+            go rowspanAcc (AnnotatedCorniceBase _ (Colonnade (toList -> v))) = censor wrap . forM_ (zip (inits v) v) $ \(before, OneColonnade Sized{..} _) -> do
+              let (_, cellSize') = compCellSize rowspanAcc (map oneColonnadeHead before) Sized{..}
+              whenIsJust cellSize' $ \cellSize -> tellM $ fromContent Sized { sizedSize = cellSize, sizedContent }
+            go rowspanAcc (AnnotatedCorniceCap _ v@(toList -> oneCornices)) = do
+              rowspanAcc' <- (execStateT ?? rowspanAcc) . hoist (censor wrap) . forM_ (zip (inits oneCornices) oneCornices) $ \(before, OneCornice h (size -> sz')) -> do
+                let sz = Sized sz' h
+                let (beforeSize, cellSize') = compCellSize rowspanAcc (concatMap (map oneColonnadeHead . toList . getColonnade . uncapAnnotated . oneCorniceBody) before) sz
+                whenIsJust cellSize' $ \cellSize -> do
+                  let Sized{..} = sz
+                  lift . tellM $ fromContent Sized { sizedSize = cellSize, sizedContent }
+                  if | [n] <- mapMaybe (\(key, val) -> guardOnM (is _Rowspan key) $ readMay val) (toSortable sizedContent ^. _sortableContent . cellAttrs)
+                       -> State.modify $ (:) (n, beforeSize, cellSize)
+                     | otherwise -> return ()
+              let rowspanAcc'' = rowspanAcc'
+                    & traverse . _1 %~ pred 
+              whenIsJust (flattenAnnotated v) $ go rowspanAcc''
+
+            compCellSize :: forall h' c. [(Int, Int, Int)] -> [Sized (Maybe Int) h' c] -> Sized (Maybe Int) h' c -> (Int, Maybe Int)
+            compCellSize rowspanAcc before Sized{..} = (beforeSize,) . assertM' (> 0) $ fromMaybe 1 sizedSize - shadowed
+              where Sum beforeSize = foldMap (\(Sized sz _) -> Sum $ fromMaybe 1 sz) before
+                    Sum shadowed = flip foldMap rowspanAcc $ \(rowsRem, firstCol, sz) -> fromMaybe mempty $ do
+                      guard $ rowsRem > 0
+                      guard $ firstCol <= beforeSize
+                      guard $ beforeSize < firstCol + sz
+                      return . Sum $ sz - (beforeSize - firstCol)
+
+            wrap :: Widget -> Widget
+            wrap row = case dbsTemplate of
+              DBSTCourse{} -> row
+              DBSTDefault{} -> $(widgetFile "table/header")
+            fromContent :: Sized Int h (DBCell m x) -> WriterT x m Widget
+            fromContent Sized{ sizedSize = cellSize, sizedContent = toSortable -> Sortable{..} } = do
               widget <- sortableContent ^. cellContents
               let
-                cellSize = fromMaybe 1 sizedSize
                 directions = [dir | SortingSetting k dir <- psSorting, Just k == sortableKey ]
                 isSortable = isJust sortableKey
                 isSorted dir = fromMaybe False $ (==) <$> (SortingSetting <$> sortableKey <*> pure dir) <*> listToMaybe psSorting
@@ -1280,12 +1318,8 @@ dbTable PSValidator{..} dbtable@DBTable{ dbtIdent = dbtIdent'@(toPathPiece -> db
               case dbsTemplate of
                 DBSTCourse{}  -> return $(widgetFile "table/course/header")
                 DBSTDefault{} -> return $(widgetFile "table/cell/header")
-          , case dbsTemplate of
-              DBSTCourse{}  -> id
-              DBSTDefault{} -> pure . (>>= \row -> return $(widgetFile "table/header")) . foldMapM id
-          )
       in do
-        wHeaders <- maybe (return Nothing) (fmap Just . foldMapM id . genHeaders) pSortable
+        wHeaders <- maybe (return Nothing) (fmap Just . genHeaders (dbtColonnade ^. _Cornice)) pSortable
         case dbsTemplate of
           DBSTCourse c l r s a -> do
             wRows <- forM rows $ \row' -> let
@@ -1611,3 +1645,27 @@ dbSelect resLens selLens genIndex = Colonnade.singleton (headednessPure $ mempty
     genForm _ mkUnique = do
       (selResult, selWidget) <- mreq checkBoxField (fsUniq mkUnique "select") (Just False)
       return (set selLens <$> selResult, [whamlet|^{fvWidget selWidget}|])
+
+
+cap' :: ( AsCornice Sortable p r' (DBCell m x) colonnade
+        , IsDBTable m x
+        )
+     => colonnade
+     -> Cornice Sortable ('Cap p) r' (DBCell m x)
+cap' (view _Cornice -> cornice) = case cornice of
+  CorniceBase Colonnade{..}
+    | [OneColonnade{..}] <- toList getColonnade
+      -> recap (oneColonnadeHead & _sortableContent . cellAttrs %~ incRowspan) cornice
+  CorniceCap cornices
+    -> CorniceCap $ fmap (\OneCornice{..} -> OneCornice { oneCorniceHead = oneCorniceHead & _sortableContent . cellAttrs %~ incRowspan, oneCorniceBody = cap' oneCorniceBody }) cornices
+  other
+    -> recap (fromSortable . Sortable Nothing $ cell mempty) other
+  where
+    incRowspan :: [(Text, Text)] -> [(Text, Text)]
+    incRowspan attrs
+      | [n] <- mapMaybe (\(key, val) -> guardOnM (is _Rowspan key) $ readMay val) attrs
+      = (_Rowspan # (), tshow (succ n :: Natural)) : filter (hasn't $ _1 . _Rowspan) attrs
+      | otherwise = (_Rowspan # (), "2") : filter (hasn't $ _1 . _Rowspan) attrs
+
+_Rowspan :: Prism' Text ()
+_Rowspan = prism' (\() -> "rowspan") $ flip guardOn () . ((==) `on` CI.mk) "rowspan"
diff --git a/src/Handler/Utils/Table/Pagination/Types.hs b/src/Handler/Utils/Table/Pagination/Types.hs
index 69566c3a9..7e8141003 100644
--- a/src/Handler/Utils/Table/Pagination/Types.hs
+++ b/src/Handler/Utils/Table/Pagination/Types.hs
@@ -2,10 +2,11 @@
 
 module Handler.Utils.Table.Pagination.Types
   ( FilterKey(FilterKey), SortingKey(SortingKey)
-  , Sortable(..)
+  , Sortable(..), _sortableKey, _sortableContent
   , sortable
   , ToSortable(..), FromSortable(..)
   , SortableP(..)
+  , IsSortable, _Sortable
   , DBTableInvalid(..)
   , AsCornice(..)
   ) where
@@ -30,6 +31,8 @@ data Sortable a = Sortable
   , sortableContent :: a
   }
 
+makeLenses_ ''Sortable
+
 sortable :: Maybe SortingKey -> c -> (a -> c) -> Colonnade Sortable a c
 sortable k h = singleton (Sortable k h)
 
@@ -69,6 +72,12 @@ instance FromSortable Headless where
   fromSortable _ = Headless
 
 
+type IsSortable h = (ToSortable h, FromSortable h)
+
+_Sortable :: IsSortable h => Prism' (h a) (Sortable a)
+_Sortable = prism' fromSortable $ \x -> ($ x) . toSortable <$> pSortable
+
+
 data DBTableInvalid = DBTIRowsMissing Int
   deriving (Eq, Ord, Read, Show, Generic, Typeable)
 
diff --git a/src/Utils.hs b/src/Utils.hs
index 94b1b4426..60e87f633 100644
--- a/src/Utils.hs
+++ b/src/Utils.hs
@@ -55,7 +55,7 @@ import Control.Arrow as Utils ((>>>))
 import Control.Monad.Trans.Except (ExceptT(..), throwE, runExceptT)
 import Control.Monad.Except (MonadError(..))
 import Control.Monad.Trans.Maybe as Utils (MaybeT(..))
-import Control.Monad.Trans.Writer.Lazy (execWriterT, tell)
+import Control.Monad.Trans.Writer.Lazy (WriterT, execWriterT, tell)
 import Control.Monad.Catch
 import Control.Monad.Morph (hoist)
 import Control.Monad.Fail
@@ -802,6 +802,9 @@ diffTimeout timeoutLength timeoutRes act = fromMaybe timeoutRes <$> timeout time
       = let (MkFixed micro :: Micro) = realToFrac timeoutLength
          in fromInteger micro
 
+tellM :: (Monad m, Monoid x) => m x -> WriterT x m ()
+tellM = tell <=< lift
+
 -------------
 -- Conduit --
 -------------
diff --git a/stack.yaml b/stack.yaml
index ab91595e4..a24808702 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -31,7 +31,7 @@ extra-deps:
   - git: git@gitlab2.rz.ifi.lmu.de:uni2work/xss-sanitize.git
     commit: 074ed7c8810aca81f60f2c535f9e7bad67e9d95a
   - git: git@gitlab2.rz.ifi.lmu.de:uni2work/colonnade.git
-    commit: 65164334e9704afc24603a9f3197b4581c996ad8
+    commit: f8170266ab25b533576e96715bedffc5aa4f19fa
     subdirs:
       - colonnade
     
diff --git a/stack.yaml.lock b/stack.yaml.lock
index eea400a87..3d8d3b3a3 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -144,12 +144,12 @@ packages:
     git: git@gitlab2.rz.ifi.lmu.de:uni2work/colonnade.git
     pantry-tree:
       size: 481
-      sha256: c7137405813404f4e0d2334d67876ab7150e7dc7f8b9f23ad452c5ee76ce4737
-    commit: 65164334e9704afc24603a9f3197b4581c996ad8
+      sha256: 392393652cc0f354d351482557b9385c8e6122e706359b030373656565f2e045
+    commit: f8170266ab25b533576e96715bedffc5aa4f19fa
   original:
     subdir: colonnade
     git: git@gitlab2.rz.ifi.lmu.de:uni2work/colonnade.git
-    commit: 65164334e9704afc24603a9f3197b4581c996ad8
+    commit: f8170266ab25b533576e96715bedffc5aa4f19fa
 - completed:
     hackage: hsass-0.8.0@sha256:82d55fb2a10342accbc4fe80d263163f40a138d8636e275aa31ffa81b14abf01,2792
     pantry-tree:
diff --git a/templates/table/cell/header.hamlet b/templates/table/cell/header.hamlet
index e05dd9568..ecc5ab994 100644
--- a/templates/table/cell/header.hamlet
+++ b/templates/table/cell/header.hamlet
@@ -1,5 +1,5 @@
 $newline never
-<th .table__th *{attrs} :isSortable:.sortable :isSorted SortAsc:.sorted-asc :isSorted SortDesc:.sorted-desc uw-hide-column-header=#{maybe "" toPathPiece sortableKey} :cellSize /= 1:colspan=#{cellSize}>
+<th .table__th *{attrs} :isSortable:.sortable :isSorted SortAsc:.sorted-asc :isSorted SortDesc:.sorted-desc :is _Just sortableKey:uw-hide-column-header=#{maybe "" toPathPiece sortableKey} :cellSize /= 1:colspan=#{cellSize}>
   $maybe flag <- sortableKey
     $case directions
       $of [SortAsc]