diff --git a/src/main/java/org/olat/admin/quota/GenericQuotaEditController.java b/src/main/java/org/olat/admin/quota/GenericQuotaEditController.java
index 2de9bc1d3516648c175ba1ff165aa95594e49c92..6a5b002b2f893de30b7778d51cd45490cd0546ab 100644
--- a/src/main/java/org/olat/admin/quota/GenericQuotaEditController.java
+++ b/src/main/java/org/olat/admin/quota/GenericQuotaEditController.java
@@ -121,8 +121,9 @@ public class GenericQuotaEditController extends BasicController {
 
 	private void initMyContent(UserRequest ureq) {
 		QuotaManager qm = QuotaManager.getInstance();
-		if (!qm.hasQuotaEditRights(ureq.getIdentity()))
+		if (!qm.hasQuotaEditRights(ureq.getIdentity())) {
 			throw new OLATSecurityException("Insufficient permissions to access QuotaController");
+		}
 
 		myContent = createVelocityContainer("edit");
 		myContent.contextPut("modalMode", Boolean.valueOf(modalMode));
@@ -130,7 +131,6 @@ public class GenericQuotaEditController extends BasicController {
 		delQuotaButton = LinkFactory.createButtonSmall("qf.del", myContent, this);
 		cancelButton = LinkFactory.createButtonSmall("cancel", myContent, this);
 		
-		//TODO loop over QuotaManager.getDefaultQuotaIdentifyers instead
 		myContent.contextPut("users",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_USERS));
 		myContent.contextPut("powerusers",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_POWER));
 		myContent.contextPut("groups",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_GROUPS));
diff --git a/src/main/java/org/olat/admin/quota/GenericQuotaViewController.java b/src/main/java/org/olat/admin/quota/GenericQuotaViewController.java
index 900fd214b778a57f8d2d251098abfa330780681f..22d7d4467ed7e45642f91f7c57f95df99a586230 100644
--- a/src/main/java/org/olat/admin/quota/GenericQuotaViewController.java
+++ b/src/main/java/org/olat/admin/quota/GenericQuotaViewController.java
@@ -31,7 +31,6 @@ import org.olat.core.gui.components.velocity.VelocityContainer;
 import org.olat.core.gui.control.Event;
 import org.olat.core.gui.control.WindowControl;
 import org.olat.core.gui.control.controller.BasicController;
-import org.olat.core.logging.OLATSecurityException;
 import org.olat.core.util.vfs.Quota;
 import org.olat.core.util.vfs.QuotaManager;
 
@@ -69,7 +68,7 @@ public class GenericQuotaViewController extends BasicController {
 		QuotaManager qm = QuotaManager.getInstance();
 		currentQuota = qm.getCustomQuota(relPath);
 		// init velocity context
-		initMyContent(ureq);
+		initMyContent();
 		if (currentQuota == null) {
 			currentQuota = qm.createQuota(relPath, null, null);		
 		} else {
@@ -78,16 +77,16 @@ public class GenericQuotaViewController extends BasicController {
 		myContent.contextPut("editQuota", Boolean.FALSE);	
 	  putInitialPanel(myContent);
 	}
+	
+	public void setNotEnoughPrivilegeMessage() {
+		myContent.contextPut("notEnoughPrivilege", Boolean.TRUE);
+	}
 
-	private void initMyContent(UserRequest ureq) {
+	private void initMyContent() {
 		QuotaManager qm = QuotaManager.getInstance();
-		if (!qm.hasQuotaEditRights(ureq.getIdentity()))
-			throw new OLATSecurityException("Insufficient permissions to access QuotaController");
-
 		myContent = createVelocityContainer("edit");
+		myContent.contextPut("notEnoughPrivilege", Boolean.FALSE);
 		myContent.contextPut("modalMode", Boolean.valueOf(modalMode));
-		
-		//TODO loop over QuotaManager.getDefaultQuotaIdentifyers instead
 		myContent.contextPut("users",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_USERS));
 		myContent.contextPut("powerusers",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_POWER));
 		myContent.contextPut("groups",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_GROUPS));
@@ -95,7 +94,6 @@ public class GenericQuotaViewController extends BasicController {
 		myContent.contextPut("coursefolder",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_COURSE));
 		myContent.contextPut("nodefolder",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_NODES));
 		myContent.contextPut("feeds",qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_FEEDS));
-		
 	}
 	
 	private void initQuotaForm(UserRequest ureq, Quota quota) {
diff --git a/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java b/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java
index 4650ac70331b9996057f6b6f6fda2427a3acbdaf..2a66746c7d1f23807212a20f63ec4c627df73da1 100644
--- a/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java
+++ b/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java
@@ -43,6 +43,7 @@ import org.olat.core.gui.control.Controller;
 import org.olat.core.gui.control.WindowControl;
 import org.olat.core.id.Identity;
 import org.olat.core.logging.OLATRuntimeException;
+import org.olat.core.logging.OLATSecurityException;
 import org.olat.core.logging.OLog;
 import org.olat.core.logging.Tracing;
 import org.olat.core.util.resource.OresHelper;
@@ -400,13 +401,19 @@ public class QuotaManagerImpl extends QuotaManager {
 		return true;
 	}
 
-
 	/**
 	 * @see org.olat.core.util.vfs.QuotaManager#getQuotaEditorInstance(org.olat.core.gui.UserRequest, org.olat.core.gui.control.WindowControl, java.lang.String, boolean)
 	 */
 	@Override
 	public Controller getQuotaEditorInstance(UserRequest ureq, WindowControl wControl, String relPath, boolean modalMode) {
-		return new GenericQuotaEditController(ureq, wControl, relPath, modalMode);
+		try {
+			return new GenericQuotaEditController(ureq, wControl, relPath, modalMode);
+		} catch (OLATSecurityException e) {
+			log.warn("Try to access the quota editor without enough privilege", e);
+			GenericQuotaViewController viewCtrl = new GenericQuotaViewController(ureq, wControl, relPath, modalMode);
+			viewCtrl.setNotEnoughPrivilegeMessage();
+			return viewCtrl;
+		}
 	}
 	
 
diff --git a/src/main/java/org/olat/admin/quota/_content/edit.html b/src/main/java/org/olat/admin/quota/_content/edit.html
index 57c2df9083470ddeccc177a8e809c7474bd8825a..75138ad7b6bc5e2f0e332ee2f643d496dce9db9c 100644
--- a/src/main/java/org/olat/admin/quota/_content/edit.html
+++ b/src/main/java/org/olat/admin/quota/_content/edit.html
@@ -1,6 +1,9 @@
 #if($editQuota)
 	<fieldset class="clearfix">
 		<legend>$r.translate("qf.edit")</legend>
+		#if($r.isNotNull($notEnoughPrivilege) && $notEnoughPrivilege)
+		<div class="o_warning">$r.translate("warning.qd.not.enough.privilege")</div>
+		#end
 		#if(!$isEmptyQuota)
 		<div class="o_button_group o_button_group_right">$r.render("qf.del")</div>
 		#end
@@ -9,6 +12,9 @@
 #else
 	<fieldset class="clearfix">
 		<legend>$r.translate("qf.new")</legend>
+		#if($r.isNotNull($notEnoughPrivilege) && $notEnoughPrivilege)
+		<div class="o_warning">$r.translate("warning.qd.not.enough.privilege")</div>
+		#end
 		#if($r.available("qf.new"))
 			<div class="o_button_group o_button_group_right">$r.render("qf.new")</div>
 		#end
diff --git a/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_de.properties
index 3cd0d744c7d3c1378acc495a49604a7af7baa674..f369dc40ade35f80016837c75a2c07e2a8863382 100644
--- a/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_de.properties
@@ -25,3 +25,4 @@ qf.title=Quotaverwaltung
 table.header.limit=Upload Limite KB
 table.header.path=Pfad
 table.header.quota=Quota KB
+warning.qd.not.enough.privilege=Sie haben nicht die Berechtigungen Quota zu editieren.
diff --git a/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_en.properties
index f4f0b75f0ec1bb6b6c6b874df397759a7db3c482..a701d4ec531257bd24d4e69e7e9b9a7a1466dde3 100644
--- a/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/admin/quota/_i18n/LocalStrings_en.properties
@@ -25,3 +25,4 @@ qf.title=Quota management
 table.header.limit=Upload limit KB
 table.header.path=Path
 table.header.quota=Quota KB
+warning.qd.not.enough.privilege=You don't have the privileges to edit quotas.
diff --git a/src/main/java/org/olat/core/gui/components/form/flexible/elements/MultipleSelectionElement.java b/src/main/java/org/olat/core/gui/components/form/flexible/elements/MultipleSelectionElement.java
index 70d19668c2c21158a60023bc2201afcf2e590030..832d54b90a5d2c14c064dc4d621ce8f728e79bea 100644
--- a/src/main/java/org/olat/core/gui/components/form/flexible/elements/MultipleSelectionElement.java
+++ b/src/main/java/org/olat/core/gui/components/form/flexible/elements/MultipleSelectionElement.java
@@ -31,15 +31,11 @@ import java.util.Set;
 
 
 /**
- * Description:<br>
- * TODO: patrickb Class Description for MultipleSelectionElement
  * 
- * <P>
  * Initial Date:  04.01.2007 <br>
  * @author felix
  * @author patrickb
  */
-
 public interface MultipleSelectionElement extends SelectionElement {
 
 	/**
@@ -120,6 +116,21 @@ public interface MultipleSelectionElement extends SelectionElement {
 	 */
 	public void setEscapeHtml(boolean escapeHtml);
 	
+	/**
+	 * @return true if the state of a check box is changed only by ajax
+	 * 					events and not by the submission of a form.
+	 */
+	public boolean isAjaxOnly();
+	
+	/**
+	 * Set to true if the state of the element need to be only
+	 * changed by an ajax event and not by the submission of
+	 *  a form.
+	 *  
+	 * @param ajaxOnlyMode
+	 */
+	public void setAjaxOnly(boolean ajaxOnlyMode);
+	
 	public enum Layout {
 		horizontal,
 		vertical
diff --git a/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionElementImpl.java b/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionElementImpl.java
index 1108e637b3c9825fb30aedb3781a26580e977808..96f6fd4d66a67197f26ab44e5c64222ed8191be0 100644
--- a/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionElementImpl.java
+++ b/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionElementImpl.java
@@ -33,6 +33,7 @@ import java.util.Set;
 
 import org.olat.core.gui.UserRequest;
 import org.olat.core.gui.components.form.flexible.elements.MultipleSelectionElement;
+import org.olat.core.gui.components.form.flexible.impl.Form;
 import org.olat.core.gui.components.form.flexible.impl.FormItemImpl;
 import org.olat.core.logging.OLog;
 import org.olat.core.logging.Tracing;
@@ -59,6 +60,7 @@ public class MultipleSelectionElementImpl extends FormItemImpl implements Multip
 	private final int columns;
 	protected MultipleSelectionComponent component;
 	private String[] original = null;
+	private boolean ajaxOnlyMode = false;
 	private boolean originalIsDefined = false;
 	private boolean escapeHtml = true;
 	private boolean domReplacementWrapperRequired = true;
@@ -91,6 +93,17 @@ public class MultipleSelectionElementImpl extends FormItemImpl implements Multip
 		}
 	}
 
+	@Override
+	public boolean isAjaxOnly() {
+		return ajaxOnlyMode;
+	}
+
+	@Override
+	public void setAjaxOnly(boolean ajaxOnlyMode) {
+		this.ajaxOnlyMode = ajaxOnlyMode;
+		
+	}
+
 	public Layout getLayout() {
 		return layout;
 	}
@@ -228,23 +241,33 @@ public class MultipleSelectionElementImpl extends FormItemImpl implements Multip
 
 	@Override
 	public void evalFormRequest(UserRequest ureq) {
-		if(!isEnabled()){
-			//if element is visible as disabled it would be resetted
-			return;
-		}
-		// which one was selected?
-		// selection change?
-		// mark corresponding comps as dirty
-		String[] reqVals = getRootForm().getRequestParameterValues(getName());
-		if (reqVals == null) {
-			// selection box?
-			reqVals = getRootForm().getRequestParameterValues(getName() + "_SELBOX");
-		}
-		//
-		selected = new HashSet<String>();
-		if (reqVals != null) {
-			for (int i = 0; i < reqVals.length; i++) {
-				selected.add(reqVals[i]);
+		Form form = getRootForm();
+		if(isAjaxOnly()) {
+			String dispatchuri = form.getRequestParameter("dispatchuri");
+			if(dispatchuri != null && dispatchuri.equals(component.getFormDispatchId())) {
+				String key = form.getRequestParameter("achkbox");
+				String checked = form.getRequestParameter("checked");
+				if("true".equals(checked)) {
+					selected.add(key);
+				} else if("false".equals(checked)) {
+					selected.remove(key);
+				}
+			}
+		} else if(isEnabled() ) {
+			// which one was selected?
+			// selection change?
+			// mark corresponding comps as dirty
+			String[] reqVals = form.getRequestParameterValues(getName());
+			if (reqVals == null) {
+				// selection box?
+				reqVals = form.getRequestParameterValues(getName() + "_SELBOX");
+			}
+			//
+			selected = new HashSet<String>();
+			if (reqVals != null) {
+				for (int i = 0; i < reqVals.length; i++) {
+					selected.add(reqVals[i]);
+				}
 			}
 		}
 	}
diff --git a/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionRenderer.java b/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionRenderer.java
index bfd9ea4ee23c17dd12d5107a5630dcddecf065f4..883149da99b41b4ba4d79824d533726ace580cf5 100644
--- a/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionRenderer.java
+++ b/src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/MultipleSelectionRenderer.java
@@ -24,6 +24,7 @@ import org.olat.core.gui.components.Component;
 import org.olat.core.gui.components.DefaultComponentRenderer;
 import org.olat.core.gui.components.form.flexible.elements.MultipleSelectionElement.Layout;
 import org.olat.core.gui.components.form.flexible.impl.FormJSHelper;
+import org.olat.core.gui.components.form.flexible.impl.NameValuePair;
 import org.olat.core.gui.render.RenderResult;
 import org.olat.core.gui.render.Renderer;
 import org.olat.core.gui.render.StringOutput;
@@ -143,6 +144,16 @@ public class MultipleSelectionRenderer extends DefaultComponentRenderer {
 		}
 		if(!stC.isEnabled() || !check.isEnabled()) {
 			sb.append(" disabled='disabled' ");
+		} else if(stF.isAjaxOnly()) {
+			// The implementation is conservative as it send the state of the check box,
+			// this is especially useful if an issue of double evaluation appears.
+			sb.append(" onclick=\"javascript: this.checked ?")
+		      .append(FormJSHelper.getXHRFnCallFor(stF.getRootForm(), stC.getFormDispatchId(), 1, false, false, false,
+		    		  new NameValuePair("achkbox", key), new NameValuePair("checked", "true")))
+		      .append(" : ")
+		      .append(FormJSHelper.getXHRFnCallFor(stF.getRootForm(), stC.getFormDispatchId(), 1, false, false, false,
+		    		  new NameValuePair("achkbox", key), new NameValuePair("checked", "false")))
+			  .append(";\"");
 		} else {
 			//use the selection form dispatch id and not the one of the element!
 			sb.append(FormJSHelper.getRawJSFor(check.getRootForm(), check.getSelectionElementFormDispatchId(), check.getAction()));
diff --git a/src/main/java/org/olat/core/gui/components/stack/BreadcrumbedStackedPanel.java b/src/main/java/org/olat/core/gui/components/stack/BreadcrumbedStackedPanel.java
index 44cb5059544060bcff758505defc6bae591d335c..0cf943c6e4fa4f78488c5e2268263c854bd6707f 100644
--- a/src/main/java/org/olat/core/gui/components/stack/BreadcrumbedStackedPanel.java
+++ b/src/main/java/org/olat/core/gui/components/stack/BreadcrumbedStackedPanel.java
@@ -207,7 +207,9 @@ public class BreadcrumbedStackedPanel extends Panel implements StackedPanel, Bre
 
 	@Override
 	public void dispatchEvent(UserRequest ureq, Component source, Event event) {
-		if (source.equals(backLink) || source.equals(closeLink)) {
+		boolean closeEvent = source.equals(closeLink);
+		boolean backEvent = source.equals(backLink);
+		if (backEvent || closeEvent) {
 			if (stack.size() > 1) {
 				// back means to one level down, change source to the stack item one below current
 				source = stack.get(stack.size()-2);
@@ -235,13 +237,12 @@ public class BreadcrumbedStackedPanel extends Panel implements StackedPanel, Bre
 				}
 				
 				if(popedCrumb.getController() != null) {
-					fireEvent(ureq, new PopEvent(popedCrumb.getController(), popedCrumb.getUserObject()));
+					fireEvent(ureq, new PopEvent(popedCrumb.getController(), popedCrumb.getUserObject(), closeEvent));
 				} else if(popedCrumb.getUserObject() != null) {
-					fireEvent(ureq, new PopEvent(popedCrumb.getUserObject()));
+					fireEvent(ureq, new PopEvent(popedCrumb.getUserObject(), closeEvent));
 				}
 			} else if(stack.indexOf(source) == 0) {
 				fireEvent(ureq, new RootEvent());
-				
 			}
 		}
 	}
@@ -397,7 +398,7 @@ public class BreadcrumbedStackedPanel extends Panel implements StackedPanel, Bre
 			BreadCrumb rootCrumb  = (BreadCrumb)rootLink.getUserObject();
 			setContent(rootCrumb.getController()); 
 			updateCloseLinkTitle();
-			fireEvent(ureq, new PopEvent(rootCrumb.getController()));
+			fireEvent(ureq, new PopEvent(rootCrumb.getController(), false));
 		}
 	}
 
diff --git a/src/main/java/org/olat/core/gui/components/stack/PopEvent.java b/src/main/java/org/olat/core/gui/components/stack/PopEvent.java
index e72b92d8208c9e205fe13d8e85f4ff38fd67b687..6d1769b584a221cbe21be27e8b44d68ce06219fd 100644
--- a/src/main/java/org/olat/core/gui/components/stack/PopEvent.java
+++ b/src/main/java/org/olat/core/gui/components/stack/PopEvent.java
@@ -30,21 +30,28 @@ public class PopEvent extends Event {
 
 	private static final long serialVersionUID = -8478820879485545321L;
 	
+	private final boolean close;
 	private final Object uobject;
 	private final Controller controller;
 	
-	public PopEvent(Controller controller, Object uobject) {
+	public PopEvent(Controller controller, Object uobject, boolean close) {
 		super("pop");
+		this.close = close;
 		this.uobject = uobject;
 		this.controller = controller;
 	}
 	
-	public PopEvent(Object uobject) {
+	public PopEvent(Object uobject, boolean close) {
 		super("pop");
+		this.close = close;
 		this.uobject = uobject;
 		this.controller = null;
 	}
 	
+	public boolean isClose() {
+		return close;
+	}
+	
 	public Object getUserObject() {
 		return uobject;
 	}
diff --git a/src/main/java/org/olat/core/util/vfs/QuotaManager.java b/src/main/java/org/olat/core/util/vfs/QuotaManager.java
index 59661c6bf7289913ba03317957a91bff31809383..f1a79eb6aafb36fb70c536553ecb718b0f9c9f8a 100644
--- a/src/main/java/org/olat/core/util/vfs/QuotaManager.java
+++ b/src/main/java/org/olat/core/util/vfs/QuotaManager.java
@@ -33,7 +33,6 @@ import org.olat.core.gui.UserRequest;
 import org.olat.core.gui.control.Controller;
 import org.olat.core.gui.control.WindowControl;
 import org.olat.core.id.Identity;
-import org.olat.core.manager.BasicManager;
 
 /**
  * Initial Date: Feb 17, 2004
@@ -45,7 +44,7 @@ import org.olat.core.manager.BasicManager;
  * <br>
  * Comment: Refactoring to core package make default quotas generic
  */
-public abstract class QuotaManager extends BasicManager{
+public abstract class QuotaManager {
 
 	protected static QuotaManager INSTANCE;
 
@@ -153,7 +152,8 @@ public abstract class QuotaManager extends BasicManager{
 	
 	/**
 	 * Factory method to create a controller that is capable of editing the
-	 * quota for the given path.
+	 * quota for the given path. If the user has not enough privileges to edit
+	 * the quota, it will only see the quota's view.
 	 * <p>
 	 * The controller must fire the following events:
 	 * <ul> 
diff --git a/src/main/java/org/olat/course/assessment/ui/tool/AssessmentToolController.java b/src/main/java/org/olat/course/assessment/ui/tool/AssessmentToolController.java
index bac8ea917aae1c5efbc3aec0d2137b57fe2ca965..044a461c5f2861c81548a6677d3d8c48a2fd1e3c 100644
--- a/src/main/java/org/olat/course/assessment/ui/tool/AssessmentToolController.java
+++ b/src/main/java/org/olat/course/assessment/ui/tool/AssessmentToolController.java
@@ -160,7 +160,9 @@ public class AssessmentToolController extends MainLayoutBasicController implemen
 		} else if(stackPanel == source) {
 			if(event instanceof PopEvent) {
 				PopEvent pe = (PopEvent)event;
-				if(pe.getController() == courseTreeCtrl) {
+				if(pe.isClose()) {
+					stackPanel.popUpToRootController(ureq);
+				} else if(pe.getController() == courseTreeCtrl) {
 					removeAsListenerAndDispose(courseTreeCtrl);
 					courseTreeCtrl = null;
 					segmentButtonsCmp.setSelectedButton(overviewLink);
diff --git a/src/main/java/org/olat/course/nodes/cl/ui/CheckListAssessmentController.java b/src/main/java/org/olat/course/nodes/cl/ui/CheckListAssessmentController.java
index 2284d4566e6fe6e6ae435c5e1b8772af5ef88c6f..a2c8fb9e0ce9b563947448b665d51cf4381a929c 100644
--- a/src/main/java/org/olat/course/nodes/cl/ui/CheckListAssessmentController.java
+++ b/src/main/java/org/olat/course/nodes/cl/ui/CheckListAssessmentController.java
@@ -38,12 +38,14 @@ import org.olat.basesecurity.BaseSecurityModule;
 import org.olat.basesecurity.GroupRoles;
 import org.olat.core.CoreSpringFactory;
 import org.olat.core.commons.persistence.DBFactory;
+import org.olat.core.commons.persistence.SortKey;
 import org.olat.core.gui.UserRequest;
 import org.olat.core.gui.components.Component;
 import org.olat.core.gui.components.form.flexible.FormItem;
 import org.olat.core.gui.components.form.flexible.FormItemContainer;
 import org.olat.core.gui.components.form.flexible.elements.FlexiTableElement;
 import org.olat.core.gui.components.form.flexible.elements.FlexiTableFilter;
+import org.olat.core.gui.components.form.flexible.elements.FlexiTableSortOptions;
 import org.olat.core.gui.components.form.flexible.elements.FormLink;
 import org.olat.core.gui.components.form.flexible.elements.MultipleSelectionElement;
 import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
@@ -186,6 +188,7 @@ public class CheckListAssessmentController extends FormBasicController implement
 		maxScore = (Float)config.get(MSCourseNode.CONFIG_KEY_SCORE_MAX);
 
 		initForm(ureq);
+		reloadTable();
 	}
 
 	@Override
@@ -199,9 +202,11 @@ public class CheckListAssessmentController extends FormBasicController implement
 				layoutCont.contextPut("dueDate", dueDate);
 			}
 		}
-		
+
+		FlexiTableSortOptions options = new FlexiTableSortOptions();
 		FlexiTableColumnModel columnsModel = FlexiTableDataModelFactory.createFlexiTableColumnModel();
 		if(isAdministrativeUser) {
+			options.setDefaultOrderBy(new SortKey(Cols.username.name(), true));
 			columnsModel.addFlexiColumnModel(new DefaultFlexiColumnModel(Cols.username.i18nKey(), Cols.username.ordinal(),
 					true, Cols.username.name()));
 		}
@@ -224,6 +229,9 @@ public class CheckListAssessmentController extends FormBasicController implement
 					col = new DefaultFlexiColumnModel(true, userPropertyHandler.i18nColumnDescriptorLabelKey(), colIndex, true, propName);
 				}
 				columnsModel.addFlexiColumnModel(col);
+				if(options.getDefaultOrderBy() == null) {
+					options.setDefaultOrderBy(new SortKey(propName, true));
+				}
 			}
 		}
 		
@@ -247,8 +255,7 @@ public class CheckListAssessmentController extends FormBasicController implement
 			columnsModel.addFlexiColumnModel(new DefaultFlexiColumnModel("table.header.edit.checkbox", translate("table.header.edit.checkbox"), "edit"));
 		}
 
-		List<CheckListAssessmentRow> datas = loadDatas();
-		model = new CheckListAssessmentDataModel(checkboxList, datas, columnsModel, getLocale());
+		model = new CheckListAssessmentDataModel(checkboxList, new ArrayList<>(), columnsModel, getLocale());
 		table = uifactory.addTableElement(getWindowControl(), "checkbox-list", model, getTranslator(), formLayout);
 		if(coachCourseEnv instanceof UserCourseEnvironmentImpl) {
 			UserCourseEnvironmentImpl env = (UserCourseEnvironmentImpl)coachCourseEnv;
@@ -264,6 +271,8 @@ public class CheckListAssessmentController extends FormBasicController implement
 		}
 		table.setExportEnabled(true);
 		table.setCustomizeColumns(true);
+		FlexiTableSortOptions sortOptions = new FlexiTableSortOptions();
+		table.setSortSettings(sortOptions);
 		table.setAndLoadPersistedPreferences(ureq, "checklist-assessment");
 		
 		pdfExportButton = uifactory.addFormLink("pdf.export", formLayout, Link.BUTTON);
@@ -437,7 +446,13 @@ public class CheckListAssessmentController extends FormBasicController implement
 		}
 		super.formInnerEvent(ureq, source, event);
 	}
-	
+
+	@Override
+	protected void propagateDirtinessToContainer(FormItem fiSrc, FormEvent event) {
+		if(!(fiSrc instanceof MultipleSelectionElement)) {
+			super.propagateDirtinessToContainer(fiSrc, event);
+		}
+	}
 
 	@Override
 	protected void event(UserRequest ureq, Controller source, Event event) {
@@ -514,6 +529,8 @@ public class CheckListAssessmentController extends FormBasicController implement
 				for(int i=0; i<numOfCheckbox; i++) {
 					String checkName = "c" + i + "-" + row.getIdentityKey();
 					checkedEls[i] = uifactory.addCheckboxesHorizontal(checkName, null, flc, onKeys, onValues);
+					checkedEls[i].setAjaxOnly(true);
+					checkedEls[i].setDomReplacementWrapperRequired(false);
 					if(checked != null && i<checked.length && checked[i] != null && checked[i].booleanValue()) {
 						checkedEls[i].select(onKeys[0], true);
 					}
diff --git a/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties
index f1499894d135b480cf75d5574e0627c16275cb51..709e4caed41e996b5835f4d851aa5bc0b7e54c0f 100644
--- a/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties
@@ -117,7 +117,7 @@ qti.form.summary.compact=$org.olat.course.nodes.iq\:qti.form.summary.compact
 qti.form.summary.detailed=$org.olat.course.nodes.iq\:qti.form.summary.detailed
 qti.form.summary.none=$org.olat.course.nodes.iq\:qti.form.summary.none
 qti.form.summary.section=$org.olat.course.nodes.iq\:qti.form.summary.section
-question.progress.answered=Antwortet
+question.progress.answered=Beantwortet
 question.progress.noMaxScore=$org.olat.modules.iq\:noMaxScore
 question.progress.score=$org.olat.modules.iq\:actualPoints
 reset.data=Daten zur\u00FCcksetzen
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentItemEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentItemEditorController.java
index a8b474d5c10e8d12075aca2e1f029ff8010a9ce8..ab7e0a62e7a49732ffebe7246b96dbd7dcc0659f 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentItemEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentItemEditorController.java
@@ -123,7 +123,7 @@ public class AssessmentItemEditorController extends BasicController {
 		
 		displayCtrl = new AssessmentItemPreviewController(ureq, getWindowControl(), resolvedAssessmentItem, rootDirectory, itemFile);
 		listenTo(displayCtrl);
-		displayTabPosition = tabbedPane.addTab(translate("preview"), displayCtrl.getInitialComponent());
+		displayTabPosition = tabbedPane.addTab(translate("preview"), displayCtrl);
 		
 		putInitialPanel(mainVC);
 	}
diff --git a/src/main/java/org/olat/modules/iq/IQDisplayController.java b/src/main/java/org/olat/modules/iq/IQDisplayController.java
index 122660d03a63d65e87ad155a72f428158c5cddc1..70336e849c41f8ab31c4193e69ee2ff1f721a299 100644
--- a/src/main/java/org/olat/modules/iq/IQDisplayController.java
+++ b/src/main/java/org/olat/modules/iq/IQDisplayController.java
@@ -317,8 +317,8 @@ public class IQDisplayController extends DefaultController implements GenericEve
 		boolean itemPageSequence = ((String)modConfig.get(IQEditController.CONFIG_KEY_SEQUENCE)).equals(AssessmentInstance.QMD_ENTRY_SEQUENCE_ITEM);
 		IQMenuDisplayConf mdc = new IQMenuDisplayConf(renderSectionsOnly.booleanValue(), enabledMenu, itemPageSequence);
 
-		tmp = modConfig.get(IQEditController.CONFIG_KEY_MEMO);
-		boolean memo = tmp == null ? false : ((Boolean)tmp).booleanValue();
+		Boolean tmpMemo = modConfig.getBooleanEntry(IQEditController.CONFIG_KEY_MEMO);
+		boolean memo = tmpMemo == null ? false : tmpMemo.booleanValue();
 		
 		qticomp = new IQComponent("qticomponent", translator, ai, mdc, memo);
 		
diff --git a/src/main/java/org/olat/repository/RepositoryManager.java b/src/main/java/org/olat/repository/RepositoryManager.java
index fe75173fcd7ed7ee2a386575b98a2ac23c782870..64f3da28c030de369f28f411be0ab46aac9af30f 100644
--- a/src/main/java/org/olat/repository/RepositoryManager.java
+++ b/src/main/java/org/olat/repository/RepositoryManager.java
@@ -1227,7 +1227,7 @@ public class RepositoryManager {
 	 * check ownership of identity for a resource
 	 * @return true if the identity is member of the security group of the repository entry
 	 */
-	public boolean isOwnerOfRepositoryEntry(Identity identity, RepositoryEntry entry) {
+	public boolean isOwnerOfRepositoryEntry(IdentityRef identity, RepositoryEntryRef entry) {
 		if(entry == null || identity == null) {
 			return false;
 		}
diff --git a/src/main/java/org/olat/repository/ui/author/AuthorDeletedListController.java b/src/main/java/org/olat/repository/ui/author/AuthorDeletedListController.java
index 291fd03fe6bb05d799ffcc4ac80a05dfac7859b2..0fdbe9047d7ce73c2569ec27cbecef49d1592653 100644
--- a/src/main/java/org/olat/repository/ui/author/AuthorDeletedListController.java
+++ b/src/main/java/org/olat/repository/ui/author/AuthorDeletedListController.java
@@ -114,13 +114,18 @@ public class AuthorDeletedListController extends AuthorListController {
 			}
 			cleanUp();
 		} else if(confirmRestoreCtrl == source) {
-			if(cmc != null) {
-				cmc.deactivate();
-			}
 			if(event == Event.DONE_EVENT || event == Event.CHANGED_EVENT) {
+				if(cmc != null) {
+					cmc.deactivate();
+				}
 				reloadRows();
+				cleanUp();
+			} else if(event == Event.CANCELLED_EVENT) {
+				if(cmc != null) {
+					cmc.deactivate();
+				}
+				cleanUp();
 			}
-			cleanUp();
 		} else if(dToolsCtrl == source) {
 			if(event == Event.DONE_EVENT) {
 				toolsCalloutCtrl.deactivate();
@@ -185,14 +190,15 @@ public class AuthorDeletedListController extends AuthorListController {
 			toolsCalloutCtrl.activate();
 		}
 	}
-	
 
 	private void doRestore(UserRequest ureq, List<AuthoringEntryRow> rows) {
 		Roles roles = ureq.getUserSession().getRoles();
 		List<Long> deleteableRowKeys = new ArrayList<>(rows.size());
 		for(AuthoringEntryRow row:rows) {
 			boolean managed = RepositoryEntryManagedFlag.isManaged(row.getManagedFlags(), RepositoryEntryManagedFlag.delete);
-			boolean canDelete = roles.isOLATAdmin() || repositoryManager.isInstitutionalRessourceManagerFor(getIdentity(), roles, row);
+			boolean canDelete = roles.isOLATAdmin()
+					|| repositoryService.hasRole(getIdentity(), row, GroupRoles.owner.name())
+					|| repositoryManager.isInstitutionalRessourceManagerFor(getIdentity(), roles, row);
 			if(canDelete && !managed) {
 				deleteableRowKeys.add(row.getKey());
 			}
@@ -263,9 +269,9 @@ public class AuthorDeletedListController extends AuthorListController {
 			Roles roles = ureq.getUserSession().getRoles();
 			boolean isInstitutionalResourceManager = !roles.isGuestOnly()
 						&& repositoryManager.isInstitutionalRessourceManagerFor(identity, roles, entry);
-			isOwner = isOlatAdmin || repositoryService.hasRole(ureq.getIdentity(), entry, GroupRoles.owner.name())
+			isOwner = isOlatAdmin || repositoryService.hasRole(identity, entry, GroupRoles.owner.name())
 						|| isInstitutionalResourceManager;
-			isAuthor = isOlatAdmin || roles.isAuthor() | isInstitutionalResourceManager;
+			isAuthor = isOlatAdmin || roles.isAuthor() || isInstitutionalResourceManager;
 			
 			RepositoryHandler handler = repositoryHandlerFactory.getRepositoryHandler(entry);
 
diff --git a/src/main/java/org/olat/repository/ui/author/ConfirmRestoreController.java b/src/main/java/org/olat/repository/ui/author/ConfirmRestoreController.java
index d9046e28580a1309d437ad00b31f11170e0ed857..30a20df26f8e1fa7b324651cc4b76edaa0206744 100644
--- a/src/main/java/org/olat/repository/ui/author/ConfirmRestoreController.java
+++ b/src/main/java/org/olat/repository/ui/author/ConfirmRestoreController.java
@@ -134,5 +134,6 @@ public class ConfirmRestoreController extends FormBasicController {
 				fireEvent(ureq, new EntryChangedEvent(reloadedEntry, getIdentity(), Change.restored, "restored"));
 			}
 		}
+		fireEvent(ureq, Event.DONE_EVENT);
 	}
 }
\ No newline at end of file
diff --git a/src/main/webapp/static/js/js.plugins.min.js b/src/main/webapp/static/js/js.plugins.min.js
index 7ca5e28af1e1b2800bbdf0b57d028611722e0995..173ebc51343d6cf4c663334e8a143801fecad00b 100644
--- a/src/main/webapp/static/js/js.plugins.min.js
+++ b/src/main/webapp/static/js/js.plugins.min.js
@@ -5,7 +5,7 @@
  * Dual licensed under the MIT or GPL Version 2 licenses.
  *
  */
-jQuery.periodic=function(l,h){if(jQuery.isFunction(l)){h=l;l={}}var c=jQuery.extend({},jQuery.periodic.defaults,{ajax_complete:j,increment:g,reset:f,cancel:i},l);c.cur_period=c.period;c.tid=false;var e="";b();return c;function b(){i();c.tid=setTimeout(function(){h.call(c);g();if(c.tid){b()}},c.cur_period)}function j(n,m){if(m==="success"&&e!==n.responseText){e=n.responseText;f()}}function g(){c.cur_period*=c.decay;if(c.cur_period<c.period){f()}else{if(c.cur_period>c.max_period){c.cur_period=c.max_period;if(c.on_max!==undefined){c.on_max.call(c)}}}}function f(){c.cur_period=c.period;b()}function i(){clearTimeout(c.tid);c.tid=null}function k(){}function a(){}function d(){}};jQuery.periodic.defaults={period:4000,max_period:1800000,decay:1.5,on_max:undefined};var Hashtable=(function(){var p="function";var n=(typeof Array.prototype.splice==p)?function(s,r){s.splice(r,1)}:function(u,t){var s,v,r;if(t===u.length-1){u.length=t}else{s=u.slice(t+1);u.length=t;for(v=0,r=s.length;v<r;++v){u[t+v]=s[v]}}};function a(t){var r;if(typeof t=="string"){return t}else{if(typeof t.hashCode==p){r=t.hashCode();return(typeof r=="string")?r:a(r)}else{if(typeof t.toString==p){return t.toString()}else{try{return String(t)}catch(s){return Object.prototype.toString.call(t)}}}}}function g(r,s){return r.equals(s)}function e(r,s){return(typeof s.equals==p)?s.equals(r):(r===s)}function c(r){return function(s){if(s===null){throw new Error("null is not a valid "+r)}else{if(typeof s=="undefined"){throw new Error(r+" must not be undefined")}}}}var q=c("key"),l=c("value");function d(u,s,t,r){this[0]=u;this.entries=[];this.addEntry(s,t);if(r!==null){this.getEqualityFunction=function(){return r}}}var h=0,j=1,f=2;function o(r){return function(t){var s=this.entries.length,v,u=this.getEqualityFunction(t);while(s--){v=this.entries[s];if(u(t,v[0])){switch(r){case h:return true;case j:return v;case 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