diff --git a/src/main/java/org/olat/ims/qti21/model/xml/AssessmentTestBuilder.java b/src/main/java/org/olat/ims/qti21/model/xml/AssessmentTestBuilder.java
index f5d0872ca51afc9b3d6e4343e834afd61849b1cd..47382c19d42541de64819b166333bed091872a13 100644
--- a/src/main/java/org/olat/ims/qti21/model/xml/AssessmentTestBuilder.java
+++ b/src/main/java/org/olat/ims/qti21/model/xml/AssessmentTestBuilder.java
@@ -43,6 +43,8 @@ import uk.ac.ed.ph.jqtiplus.types.Identifier;
 import uk.ac.ed.ph.jqtiplus.value.FloatValue;
 
 /**
+ * This builder only build OpenOLAT QTI tests.
+ * 
  * 
  * Initial date: 11.12.2015<br>
  * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
@@ -53,6 +55,8 @@ public class AssessmentTestBuilder {
 	private final AssessmentTest assessmentTest;
 	private final AssessmentHtmlBuilder htmlBuilder;
 	
+	private final boolean editable;
+	
 	private Double cutValue;
 	private Double maxScore;
 	private OutcomeCondition cutValueRule;
@@ -67,6 +71,7 @@ public class AssessmentTestBuilder {
 	public AssessmentTestBuilder(AssessmentTest assessmentTest) {
 		this.assessmentTest = assessmentTest;
 		htmlBuilder = new AssessmentHtmlBuilder();
+		editable = "OpenOLAT".equals(assessmentTest.getToolName());
 		extract();
 	}
 	
@@ -153,6 +158,10 @@ public class AssessmentTestBuilder {
 		}
 	}
 	
+	public boolean isEditable() {
+		return editable;
+	}
+	
 	public AssessmentTest getAssessmentTest() {
 		return assessmentTest;
 	}
@@ -200,6 +209,10 @@ public class AssessmentTestBuilder {
 	}
 
 	public AssessmentTest build() {
+		if(!editable) {
+			return assessmentTest;
+		}
+		
 		if(assessmentTest.getOutcomeProcessing() == null) {
 			assessmentTest.setOutcomeProcessing(new OutcomeProcessing(assessmentTest));
 		}
@@ -238,7 +251,6 @@ public class AssessmentTestBuilder {
 			if(maxScoreDeclaration != null) {
 				assessmentTest.getOutcomeDeclarations().remove(maxScoreDeclaration);
 			}
-			
 		}
 	}
 	
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentSectionEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentSectionEditorController.java
index 0befeeb0336a596e045d389ae0eaa74c4650d5c6..dd5e3280b281616da89dbaf829ab2d942dcfd41f 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentSectionEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentSectionEditorController.java
@@ -29,6 +29,7 @@ import org.olat.core.gui.components.form.flexible.elements.RichTextElement;
 import org.olat.core.gui.components.form.flexible.elements.SingleSelection;
 import org.olat.core.gui.components.form.flexible.elements.TextElement;
 import org.olat.core.gui.components.form.flexible.impl.FormLayoutContainer;
+import org.olat.core.gui.components.form.flexible.impl.elements.FormSubmit;
 import org.olat.core.gui.control.Controller;
 import org.olat.core.gui.control.WindowControl;
 import org.olat.core.util.StringHelper;
@@ -60,8 +61,8 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 	private static final String[] yesnoKeys = new String[]{ "y", "n"};
 	
 	public AssessmentSectionEditorController(UserRequest ureq, WindowControl wControl,
-			AssessmentSection section, boolean restrictedEdit) {
-		super(ureq, wControl, section, restrictedEdit);
+			AssessmentSection section, boolean restrictedEdit, boolean editable) {
+		super(ureq, wControl, section, restrictedEdit, editable);
 		this.section = section;
 		htmlBuilder = new AssessmentHtmlBuilder();
 		initForm(ureq);
@@ -71,15 +72,20 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
 		setFormTitle("assessment.section.config");
 		setFormContextHelp("Test and Questionnaire Editor in Detail#details_testeditor_test_konf");
+		if(!editable) {
+			setFormWarning("warning.alien.assessment.test");
+		}
 		
 		String title = section.getTitle();
 		titleEl = uifactory.addTextElement("title", "form.metadata.title", 255, title, formLayout);
+		titleEl.setEnabled(editable);
 		titleEl.setMandatory(true);
 		
 		if(section.getRubricBlocks().isEmpty()) {
 			RichTextElement rubricEl = uifactory.addRichTextElementForStringDataCompact("rubric" + counter++, "form.imd.rubric", "", 8, -1, null,
 					formLayout, ureq.getUserSession(), getWindowControl());
 			rubricEl.getEditorConfiguration().setFileBrowserUploadRelPath("media");
+			rubricEl.setEnabled(editable);
 			rubricEls.add(rubricEl);
 		} else {
 			for(RubricBlock rubricBlock:section.getRubricBlocks()) {
@@ -87,6 +93,7 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 				RichTextElement rubricEl = uifactory.addRichTextElementForStringDataCompact("rubric" + counter++, "form.imd.rubric", rubric, 8, -1, null,
 						formLayout, ureq.getUserSession(), getWindowControl());
 				rubricEl.getEditorConfiguration().setFileBrowserUploadRelPath("media");
+				rubricEl.setEnabled(editable);
 				rubricEl.setUserObject(rubricBlock);
 				rubricEls.add(rubricEl);
 			}
@@ -102,7 +109,7 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 		} else {
 			shuffleEl.select("n", true);
 		}
-		shuffleEl.setEnabled(!restrictedEdit);
+		shuffleEl.setEnabled(!restrictedEdit && editable);
 
 		
 		int numOfItems = getNumOfQuestions(section);
@@ -117,7 +124,7 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 		
 		randomSelectedEl = uifactory.addDropdownSingleselect("form.section.selection_pre", formLayout, theKeys, theValues, null);
 		randomSelectedEl.setHelpText(translate("form.section.selection_pre.hover"));
-		randomSelectedEl.setEnabled(!restrictedEdit);
+		randomSelectedEl.setEnabled(!restrictedEdit && editable);
 		
 		int currentNum = section.getSelection() != null ? section.getSelection().getSelect() : 0;
 		if(currentNum <= numOfItems) {
@@ -130,7 +137,7 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 
 		//visible
 		visibleEl = uifactory.addRadiosHorizontal("visible", "form.section.visible", formLayout, yesnoKeys, yesnoValues);
-		visibleEl.setEnabled(!restrictedEdit);
+		visibleEl.setEnabled(!restrictedEdit && editable);
 		if (section.getVisible()) {
 			visibleEl.select("y", true);
 		} else {
@@ -139,7 +146,8 @@ public class AssessmentSectionEditorController extends ItemSessionControlControl
 		
 		FormLayoutContainer buttonsCont = FormLayoutContainer.createButtonLayout("butons", getTranslator());
 		formLayout.add(buttonsCont);
-		uifactory.addFormSubmitButton("save", "save", buttonsCont);
+		FormSubmit submit = uifactory.addFormSubmitButton("save", "save", buttonsCont);
+		submit.setEnabled(editable);
 	}
 	
 	/**
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestAndTestPartOptionsEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestAndTestPartOptionsEditorController.java
index 8b33d7ed6bb1f3955e3aecdaddb279d95992a1d0..eb3ccaf05d2656b36213348d23b43fcb692c0903 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestAndTestPartOptionsEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestAndTestPartOptionsEditorController.java
@@ -24,6 +24,7 @@ import org.olat.core.gui.components.form.flexible.FormItemContainer;
 import org.olat.core.gui.components.form.flexible.elements.SingleSelection;
 import org.olat.core.gui.components.form.flexible.elements.TextElement;
 import org.olat.core.gui.components.form.flexible.impl.FormLayoutContainer;
+import org.olat.core.gui.components.form.flexible.impl.elements.FormSubmit;
 import org.olat.core.gui.control.Controller;
 import org.olat.core.gui.control.WindowControl;
 import org.olat.core.util.StringHelper;
@@ -57,7 +58,7 @@ public class AssessmentTestAndTestPartOptionsEditorController extends ItemSessio
 	
 	public AssessmentTestAndTestPartOptionsEditorController(UserRequest ureq, WindowControl wControl,
 			AssessmentTest assessmentTest, TestPart testPart, AssessmentTestBuilder testBuilder, boolean restrictedEdit) {
-		super(ureq, wControl, testPart, restrictedEdit);
+		super(ureq, wControl, testPart, restrictedEdit, testBuilder.isEditable());
 		this.assessmentTest = assessmentTest;
 		this.testBuilder = testBuilder;
 		this.testPart = testPart;
@@ -67,15 +68,19 @@ public class AssessmentTestAndTestPartOptionsEditorController extends ItemSessio
 	@Override
 	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
 		setFormContextHelp("Test and Questionnaire Editor in Detail#details_testeditor_test_konf");
+		if(!editable) {
+			setFormWarning("warning.alien.assessment.test");
+		}
 		
 		String title = assessmentTest.getTitle();
 		titleEl = uifactory.addTextElement("title", "form.metadata.title", 255, title, formLayout);
+		titleEl.setEnabled(testBuilder.isEditable());
 		titleEl.setMandatory(true);
 		
 		//export score
 		String[] yesnoValues = new String[] { translate("yes"), translate("no") };
 		exportScoreEl = uifactory.addRadiosHorizontal("form.test.export.score", formLayout, yesnoKeys, yesnoValues);
-		exportScoreEl.setEnabled(!restrictedEdit);
+		exportScoreEl.setEnabled(!restrictedEdit && testBuilder.isEditable());
 		if(testBuilder.isExportScore()) {
 			exportScoreEl.select(yesnoKeys[0], true);
 		} else {
@@ -90,7 +95,7 @@ public class AssessmentTestAndTestPartOptionsEditorController extends ItemSessio
 		Double cutValue = testBuilder.getCutValue();
 		String cutValueStr = cutValue == null ? "" : cutValue.toString();
 		cutValueEl = uifactory.addTextElement("cut.value", "cut.value", 8, cutValueStr, formLayout);
-		cutValueEl.setEnabled(!restrictedEdit);
+		cutValueEl.setEnabled(!restrictedEdit && testBuilder.isEditable());
 		
 		uifactory.addSpacerElement("space-test-part", formLayout, false);
 		
@@ -100,13 +105,14 @@ public class AssessmentTestAndTestPartOptionsEditorController extends ItemSessio
 		String mode = testPart.getNavigationMode() == null ? NavigationMode.LINEAR.name() : testPart.getNavigationMode().name();
 		navigationModeEl = uifactory.addRadiosHorizontal("navigationMode", "form.testPart.navigationMode", formLayout, navigationKeys, navigationValues);
 		navigationModeEl.select(mode, true);
-		navigationModeEl.setEnabled(!restrictedEdit);
+		navigationModeEl.setEnabled(!restrictedEdit && testBuilder.isEditable());
 		
 		super.initForm(formLayout, listener, ureq);
 		
 		FormLayoutContainer buttonsCont = FormLayoutContainer.createButtonLayout("buttons", getTranslator());
 		formLayout.add(buttonsCont);
-		uifactory.addFormSubmitButton("save", "save", buttonsCont);
+		FormSubmit submit = uifactory.addFormSubmitButton("save", "save", buttonsCont);
+		submit.setEnabled(testBuilder.isEditable());
 	}
 	
 	@Override
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestComposerController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestComposerController.java
index 2574f9766888d1636dc37bb36d939820e101ae59..8a32cd839b85acbb93fde18f992b0dc05a4ab478 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestComposerController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestComposerController.java
@@ -198,8 +198,7 @@ public class AssessmentTestComposerController extends MainLayoutBasicController
 		// test structure
 		menuTree = new MenuTree("atTree");
 		menuTree.setExpandSelectedNode(false);
-		menuTree.setDragEnabled(!restrictedEdit);
-		menuTree.setDropEnabled(!restrictedEdit);
+
 		menuTree.setDropSiblingEnabled(!restrictedEdit);	
 		menuTree.setDndAcceptJSMethod("treeAcceptDrop_notWithChildren");	
 		menuTree.setElementCssClass("o_assessment_test_editor_menu");
@@ -210,6 +209,9 @@ public class AssessmentTestComposerController extends MainLayoutBasicController
 		unzippedContRoot = frm.unzipContainerResource(testEntry.getOlatResource());
 		updateTreeModel(false);
 		manifestBuilder = ManifestBuilder.read(new File(unzippedDirRoot, "imsmanifest.xml"));
+		//is the test editable ?
+		menuTree.setDragEnabled(!restrictedEdit && assessmentTestBuilder.isEditable());
+		menuTree.setDropEnabled(!restrictedEdit && assessmentTestBuilder.isEditable());
 		
 		//add elements
 		addItemTools = new Dropdown("editTools", "new.elements", false, getTranslator());
@@ -859,6 +861,7 @@ public class AssessmentTestComposerController extends MainLayoutBasicController
 	private void doSaveAssessmentTest() {
 		assessmentChanged = true;
 		recalculateMaxScoreAssessmentTest();
+		assessmentTestBuilder.build();
 		URI testURI = resolvedAssessmentTest.getTestLookup().getSystemId();
 		File testFile = new File(testURI);
 		qtiService.updateAssesmentObject(testFile, resolvedAssessmentTest);
@@ -921,9 +924,11 @@ public class AssessmentTestComposerController extends MainLayoutBasicController
 			TestPart uniqueTestPart = test.getTestParts().size() == 1 ? test.getTestParts().get(0) : null;
 			currentEditorCtrl = new AssessmentTestEditorController(ureq, getWindowControl(), assessmentTestBuilder, uniqueTestPart, restrictedEdit);
 		} else if(uobject instanceof TestPart) {
-			currentEditorCtrl = new AssessmentTestPartEditorController(ureq, getWindowControl(), (TestPart)uobject, restrictedEdit);
+			currentEditorCtrl = new AssessmentTestPartEditorController(ureq, getWindowControl(), (TestPart)uobject,
+					restrictedEdit, assessmentTestBuilder.isEditable());
 		} else if(uobject instanceof AssessmentSection) {
-			currentEditorCtrl = new AssessmentSectionEditorController(ureq, getWindowControl(), (AssessmentSection)uobject, restrictedEdit);
+			currentEditorCtrl = new AssessmentSectionEditorController(ureq, getWindowControl(), (AssessmentSection)uobject,
+					restrictedEdit, assessmentTestBuilder.isEditable());
 		} else if(uobject instanceof AssessmentItemRef) {
 			AssessmentItemRef itemRef = (AssessmentItemRef)uobject;
 			ResolvedAssessmentItem item = resolvedAssessmentTest.getResolvedAssessmentItem(itemRef);
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestEditorController.java
index 3a88ebd22bee69a0022314a348b0d8cfd2e8bf9b..1705a8353d3dceec42c72b265721811dae498617 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestEditorController.java
@@ -28,7 +28,6 @@ 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.util.Util;
-import org.olat.ims.qti21.QTI21Constants;
 import org.olat.ims.qti21.model.xml.AssessmentTestBuilder;
 import org.olat.ims.qti21.ui.AssessmentTestDisplayController;
 import org.olat.ims.qti21.ui.editor.events.AssessmentTestEvent;
@@ -79,23 +78,19 @@ public class AssessmentTestEditorController extends BasicController {
 	}
 	
 	private void initTestEditor(UserRequest ureq) {
-		if(QTI21Constants.TOOLNAME.equals(assessmentTest.getToolName())) {
-			if(testPart != null) {
-				optionsCtrl = new AssessmentTestAndTestPartOptionsEditorController(ureq, getWindowControl(), assessmentTest, testPart, testBuilder, restrictedEdit);
-			} else {
-				optionsCtrl = new AssessmentTestOptionsEditorController(ureq, getWindowControl(), assessmentTest, testBuilder, restrictedEdit);
-			}
-			listenTo(optionsCtrl);
-			
-			feedbackCtrl = new AssessmentTestFeedbackEditorController(ureq, getWindowControl(), testBuilder, restrictedEdit);
-			listenTo(feedbackCtrl);
-			
-			tabbedPane.addTab(translate("assessment.test.config"), optionsCtrl.getInitialComponent());
-			tabbedPane.addTab(translate("form.feedback"), feedbackCtrl.getInitialComponent());
+		if(testPart != null) {
+			optionsCtrl = new AssessmentTestAndTestPartOptionsEditorController(ureq, getWindowControl(), assessmentTest, testPart, testBuilder, restrictedEdit);
 		} else {
-			Controller ctrl = new UnkownTestEditorController(ureq, getWindowControl());
-			listenTo(ctrl);
-			tabbedPane.addTab("Unkown", ctrl.getInitialComponent());
+			optionsCtrl = new AssessmentTestOptionsEditorController(ureq, getWindowControl(), assessmentTest, testBuilder, restrictedEdit);
+		}
+		listenTo(optionsCtrl);
+		
+		feedbackCtrl = new AssessmentTestFeedbackEditorController(ureq, getWindowControl(), testBuilder, restrictedEdit);
+		listenTo(feedbackCtrl);
+		
+		tabbedPane.addTab(translate("assessment.test.config"), optionsCtrl.getInitialComponent());
+		if(testBuilder.isEditable()) {
+			tabbedPane.addTab(translate("form.feedback"), feedbackCtrl.getInitialComponent());
 		}
 	}
 
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestOptionsEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestOptionsEditorController.java
index d3951509406a99f92d180172ae429845b5157eb0..f951686487efadbc20112626cc5d7eadfa6f4c11 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestOptionsEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestOptionsEditorController.java
@@ -25,6 +25,7 @@ import org.olat.core.gui.components.form.flexible.elements.SingleSelection;
 import org.olat.core.gui.components.form.flexible.elements.TextElement;
 import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
 import org.olat.core.gui.components.form.flexible.impl.FormLayoutContainer;
+import org.olat.core.gui.components.form.flexible.impl.elements.FormSubmit;
 import org.olat.core.gui.control.Controller;
 import org.olat.core.gui.control.WindowControl;
 import org.olat.core.util.StringHelper;
@@ -69,11 +70,13 @@ public class AssessmentTestOptionsEditorController extends FormBasicController {
 		String title = assessmentTest.getTitle();
 		titleEl = uifactory.addTextElement("title", "form.metadata.title", 255, title, formLayout);
 		titleEl.setMandatory(true);
+		titleEl.setEnabled(testBuilder.isEditable());
 		
 		//export score
 		String[] yesnoValues = new String[] { translate("yes"), translate("no") };
 		exportScoreEl = uifactory.addRadiosHorizontal("form.test.export.score", formLayout, yesnoKeys, yesnoValues);
 		exportScoreEl.setEnabled(!restrictedEdit);
+		exportScoreEl.setEnabled(testBuilder.isEditable());
 		if(testBuilder.isExportScore()) {
 			exportScoreEl.select(yesnoKeys[0], true);
 		} else {
@@ -88,11 +91,12 @@ public class AssessmentTestOptionsEditorController extends FormBasicController {
 		Double cutValue = testBuilder.getCutValue();
 		String cutValueStr = cutValue == null ? "" : cutValue.toString();
 		cutValueEl = uifactory.addTextElement("cut.value", "cut.value", 8, cutValueStr, formLayout);
-		cutValueEl.setEnabled(!restrictedEdit);
+		cutValueEl.setEnabled(!restrictedEdit && testBuilder.isEditable());
 
 		FormLayoutContainer buttonsCont = FormLayoutContainer.createButtonLayout("butons", getTranslator());
 		formLayout.add(buttonsCont);
-		uifactory.addFormSubmitButton("save", "save", buttonsCont);
+		FormSubmit submit = uifactory.addFormSubmitButton("save", "save", buttonsCont);
+		submit.setEnabled(testBuilder.isEditable());
 	}
 	
 	@Override
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestPartEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestPartEditorController.java
index 45d52bf82bc60d975ef815ff978cc6f42d1c4364..28902a97038048794c08c2d2ac5c9bd444d86d09 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestPartEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/AssessmentTestPartEditorController.java
@@ -47,8 +47,8 @@ public class AssessmentTestPartEditorController extends ItemSessionControlContro
 	};
 		
 	public AssessmentTestPartEditorController(UserRequest ureq, WindowControl wControl,
-			TestPart testPart, boolean restrictedEdit) {
-		super(ureq, wControl, testPart, restrictedEdit);
+			TestPart testPart, boolean restrictedEdit, boolean editable) {
+		super(ureq, wControl, testPart, restrictedEdit, editable);
 		this.testPart = testPart;
 		initForm(ureq);
 	}
@@ -56,6 +56,9 @@ public class AssessmentTestPartEditorController extends ItemSessionControlContro
 	@Override
 	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
 		setFormTitle("assessment.testpart.config");
+		if(!editable) {
+			setFormWarning("warning.alien.assessment.test");
+		}
 		
 		super.initForm(formLayout, listener, ureq);
 		
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/ItemSessionControlController.java b/src/main/java/org/olat/ims/qti21/ui/editor/ItemSessionControlController.java
index cca1f464bcdfc27ccc0e185680b945701908fb31..416f950f551b9707184793c65d12cc3de9812f23 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/ItemSessionControlController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/ItemSessionControlController.java
@@ -50,13 +50,15 @@ public abstract class ItemSessionControlController extends FormBasicController {
 	private TextElement maxAttemptsEl /*, maxTimeEl */;
 	private SingleSelection limitAttemptsEl, allowCommentEl, allowReviewEl, showSolutionEl;
 	
+	protected final boolean editable;
 	protected final boolean restrictedEdit;
 	private final AbstractPart part;
 	
 	public ItemSessionControlController(UserRequest ureq, WindowControl wControl,
-			AbstractPart part, boolean restrictedEdit) {
+			AbstractPart part, boolean restrictedEdit, boolean editable) {
 		super(ureq, wControl, Util.createPackageTranslator(AssessmentTestDisplayController.class, ureq.getLocale()));
 		this.part = part;
+		this.editable = editable;
 		this.restrictedEdit = restrictedEdit;
 	}
 
@@ -100,13 +102,13 @@ public abstract class ItemSessionControlController extends FormBasicController {
 		} else {
 			limitAttemptsEl.select(attemtpsKeys[0], true);
 		}
-		limitAttemptsEl.setEnabled(!restrictedEdit);
+		limitAttemptsEl.setEnabled(!restrictedEdit && editable);
 		maxAttemptsEl.setVisible(limitAttemptsEl.isSelected(0));
-		maxAttemptsEl.setEnabled(!restrictedEdit);
+		maxAttemptsEl.setEnabled(!restrictedEdit && editable);
 		
 		allowCommentEl = uifactory.addRadiosHorizontal("item.session.control.allow.comment", formLayout, yesnoKeys, yesnoValues);
 		allowCommentEl.addActionListener(FormEvent.ONCHANGE);
-		allowCommentEl.setEnabled(!restrictedEdit);
+		allowCommentEl.setEnabled(!restrictedEdit && editable);
 		if(itemSessionControl != null && itemSessionControl.getAllowComment() != null && itemSessionControl.getAllowComment().booleanValue()) {
 			allowCommentEl.select(yesnoKeys[0], true);
 		} else {
@@ -115,7 +117,7 @@ public abstract class ItemSessionControlController extends FormBasicController {
 		
 		allowReviewEl = uifactory.addRadiosHorizontal("item.session.control.allow.review", formLayout, yesnoKeys, yesnoValues);
 		allowReviewEl.addActionListener(FormEvent.ONCHANGE);
-		allowReviewEl.setEnabled(!restrictedEdit);
+		allowReviewEl.setEnabled(!restrictedEdit && editable);
 		if(itemSessionControl != null && itemSessionControl.getAllowReview() != null && itemSessionControl.getAllowReview().booleanValue()) {
 			allowReviewEl.select(yesnoKeys[0], true);
 		} else {
@@ -124,7 +126,7 @@ public abstract class ItemSessionControlController extends FormBasicController {
 	
 		showSolutionEl = uifactory.addRadiosHorizontal("item.session.control.show.solution", formLayout, yesnoKeys, yesnoValues);
 		showSolutionEl.addActionListener(FormEvent.ONCHANGE);
-		showSolutionEl.setEnabled(!restrictedEdit);
+		showSolutionEl.setEnabled(!restrictedEdit && editable);
 		if(itemSessionControl != null && itemSessionControl.getShowSolution() != null && itemSessionControl.getShowSolution().booleanValue()) {
 			showSolutionEl.select(yesnoKeys[0], true);
 		} else {
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/UnkownItemEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/UnkownItemEditorController.java
index 898846d7b965efa6ad669b8032574eebd0c0b86f..baaaf5d7e5a52262f799a276a32a63c712719f55 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/UnkownItemEditorController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/UnkownItemEditorController.java
@@ -63,7 +63,7 @@ public class UnkownItemEditorController extends FormBasicController {
 
 	@Override
 	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
-		setFormWarning("warning.unkown.assessment.item");
+		setFormWarning("warning.alien.assessment.item");
 		
 		String title = item.getTitle();
 		uifactory.addStaticTextElement("title", "form.imd.title", title, formLayout);
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/UnkownTestEditorController.java b/src/main/java/org/olat/ims/qti21/ui/editor/UnkownTestEditorController.java
deleted file mode 100644
index 4ebfd0cca935ab06db87be5aac5a89afd28488b9..0000000000000000000000000000000000000000
--- a/src/main/java/org/olat/ims/qti21/ui/editor/UnkownTestEditorController.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
- * <a href="http://www.openolat.org">
- * OpenOLAT - Online Learning and Training</a><br>
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License"); <br>
- * you may not use this file except in compliance with the License.<br>
- * You may obtain a copy of the License at the
- * <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache homepage</a>
- * <p>
- * Unless required by applicable law or agreed to in writing,<br>
- * software distributed under the License is distributed on an "AS IS" BASIS, <br>
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
- * See the License for the specific language governing permissions and <br>
- * limitations under the License.
- * <p>
- * Initial code contributed and copyrighted by<br>
- * frentix GmbH, http://www.frentix.com
- * <p>
- */
-package org.olat.ims.qti21.ui.editor;
-
-import org.olat.core.gui.UserRequest;
-import org.olat.core.gui.components.form.flexible.FormItemContainer;
-import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
-import org.olat.core.gui.control.Controller;
-import org.olat.core.gui.control.WindowControl;
-
-/**
- * 
- * Initial date: 11.12.2015<br>
- * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
- *
- */
-public class UnkownTestEditorController extends FormBasicController {
-	
-	public UnkownTestEditorController(UserRequest ureq, WindowControl wControl) {
-		super(ureq, wControl);
-		
-		initForm(ureq);
-	}
-
-	@Override
-	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
-		setFormTitle("editor.unkown.title");
-		//
-	}
-
-	@Override
-	protected void doDispose() {
-		//
-	}
-
-	@Override
-	protected void formOK(UserRequest ureq) {
-		//
-	}
-}
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_de.properties
index 5162d1be96630b845fc0ae60795673daa73b0e4e..d5a9e390c8878b64b5960cc2a3a72e2ff5c980a9 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_de.properties
@@ -117,6 +117,7 @@ tools.export.qpool=$org.olat.ims.qti.editor\:tools.export.qpool
 tools.import.qpool=$org.olat.ims.qti.editor\:tools.import.qpool
 tools.import.table=$org.olat.ims.qti.editor\:tools.import.table
 tools.reload.from.files=Dateien neu laden und im Puffer ersetzen
+warning.alien.assessment.item=Dieser Fragetyp kann nicht mit dem OpenOLAT-Editor bearbeitet werden.
+warning.alien.assessment.test=Dieser Test kann nicht mit dem OpenOLAT-Editor bearbeitet werden.
 warning.in.use=Die Ressource wird bereits f\u00FCr Auswertung verwendet. Die Bearbeitung ist begrenzt.
 warning.feedback.cutvalue=Feedback wird aktiviert sobald bei "Notwendige Punktzahl f\u00FCr 'Bestanden'" eine Punktzahl eingegeben wurde.
-warning.unkown.assessment.item=Dieser Fragetyp kann nicht mit dem OpenOLAT-Editor bearbeitet werden.
diff --git a/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_en.properties
index a8e7abef236d8ac657845401859cbe64515b7df9..ea49cecab897fa8df58f54f7c9c909d817b3fa27 100644
--- a/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/editor/_i18n/LocalStrings_en.properties
@@ -117,6 +117,8 @@ tools.export.qpool=$org.olat.ims.qti.editor\:tools.export.qpool
 tools.import.qpool=$org.olat.ims.qti.editor\:tools.import.qpool
 tools.import.table=$org.olat.ims.qti.editor\:tools.import.table
 tools.reload.from.files=Reload files and refresh cache
+warning.alien.assessment.item=This question type cannot be processed with the OpenOLAT editor.
+warning.alien.assessment.test=This test cannot be processed with the OpenOLAT editor.
 warning.feedback.cutvalue=The feedback is based on the cut value. You need to define it first.
 warning.in.use=The resource is already used for assessment purpose. Editing is limited.
-warning.unkown.assessment.item=This question type cannot be processed with the OpenOLAT editor.
+