diff --git a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeActionHandler.xtend b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeActionHandler.xtend
index bbdbcdb49..a6c39d756 100644
--- a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeActionHandler.xtend
+++ b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeActionHandler.xtend
@@ -29,10 +29,7 @@ class MrTreeActionHandler extends AbstractActionHandler {
     MrTreeInteractiveLanguageServerExtension lsExtension
     
     new() {
-        this.supportedMessages = newHashMap(
-        MrTreeSetPositionConstraintAction.KIND -> MrTreeSetPositionConstraintAction,
-        MrTreeDeletePositionConstraintAction.KIND -> MrTreeDeletePositionConstraintAction,
-        SetAspectRatioAction.KIND -> SetAspectRatioAction)
+        this.supportedMessages = newHashMap(MrTreeSetPositionConstraintAction.KIND -> MrTreeSetPositionConstraintAction)
     }
     
     override handle(Action action, String clientId, KGraphDiagramServer server) {
@@ -40,14 +37,6 @@ class MrTreeActionHandler extends AbstractActionHandler {
             synchronized((server as KGraphDiagramServer).modelLock) {
                 lsExtension.setPositionConstraint(action.constraint, clientId)
             }
-        } else if (action instanceof MrTreeDeletePositionConstraintAction) {
-            synchronized((server as KGraphDiagramServer).modelLock) {
-                lsExtension.deletePositionConstraint(action.constraint, clientId)
-            }
-        } else if (action instanceof SetAspectRatioAction) {
-            synchronized((server as KGraphDiagramServer).modelLock) {
-                lsExtension.setAspectRatio(action.constraint, clientId)
-            }
         } else {
             throw new IllegalArgumentException("Action " + action.kind + " not supported by handler " + this.class.simpleName)
         }
diff --git a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeDeletePositionConstraint.xtend b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeDeletePositionConstraint.xtend
deleted file mode 100644
index db2439acf..000000000
--- a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeDeletePositionConstraint.xtend
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * KIELER - Kiel Integrated Environment for Layout Eclipse RichClient
- *
- * http://rtsys.informatik.uni-kiel.de/kieler
- * 
- * Copyright 2022 by
- * + Kiel University
- *   + Department of Computer Science
- *     + Real-Time and Embedded Systems Group
- * 
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License 2.0 which is available at
- * http://www.eclipse.org/legal/epl-2.0.
- *
- * SPDX-License-Identifier: EPL-2.0
- */
-package de.cau.cs.kieler.klighd.lsp.interactive.mrtree
-
-import org.eclipse.xtend.lib.annotations.Data
-
-/**
- * Message send if an order constraint is deleted.
- * Only the node id is required to do so, since it has its previous position saved together with its actual position.
- * 
- * @author sdo
- * 
- */
-@Data
-class MrTreeDeletePositionConstraint {
-    String id
-}
\ No newline at end of file
diff --git a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeInteractiveLanguageServerExtension.xtend b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeInteractiveLanguageServerExtension.xtend
index c4c497da3..e5ef7c37d 100644
--- a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeInteractiveLanguageServerExtension.xtend
+++ b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeInteractiveLanguageServerExtension.xtend
@@ -64,17 +64,6 @@ class MrTreeInteractiveLanguageServerExtension implements ILanguageServerExtensi
         setConstraint(MrTreeOptions.POSITION_CONSTRAINT, uri, pc.id,
             pc.position, pc.positionConstraint)
     }
-
-    def deletePositionConstraint(MrTreeDeletePositionConstraint constraint, String clientId) {
-        // Not implemented
-    }
-    
-    /**
-     * Sets the aspect ratio.
-     */
-    def setAspectRatio(SetAspectRatio constraint, String clientId) {
-        // Not implemented
-    }
     
     /**
      * Sets a layer or position constraint with a chosen {@code value} on the node 
diff --git a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/Actions.xtend b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeSetPositionConstraintAction.xtend
similarity index 56%
rename from plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/Actions.xtend
rename to plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeSetPositionConstraintAction.xtend
index 0e6f92f39..f860449ab 100644
--- a/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/Actions.xtend
+++ b/plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/interactive/mrtree/MrTreeSetPositionConstraintAction.xtend
@@ -39,43 +39,3 @@ public class MrTreeSetPositionConstraintAction implements Action {
         initializer.accept(this)
     }
 }
-
-/**
- * Deletes the constraint on the node that is identified by the given id.
- * 
- * @author sdo
- */
-@Accessors
-@EqualsHashCode
-@ToString(skipNulls = true)
-public class MrTreeDeletePositionConstraintAction implements Action {
-    public static val KIND = 'treeDeletePositionConstraint'
-    String kind = KIND
-    
-    MrTreeDeletePositionConstraint constraint
-    
-    new() {}
-    new(Consumer<MrTreeDeletePositionConstraintAction> initializer) {
-        initializer.accept(this)
-    }
-}
-
-/**
- * Deletes the constraint on the node that is identified by the given id.
- * 
- * @author sdo
- */
-@Accessors
-@EqualsHashCode
-@ToString(skipNulls = true)
-public class SetAspectRatioAction implements Action {
-    public static val KIND = 'setAspectRatio'
-    String kind = KIND
-    
-    SetAspectRatio constraint
-    
-    new() {}
-    new(Consumer<SetAspectRatioAction> initializer) {
-        initializer.accept(this)
-    }
-}