diff --git a/sdk/jme3-scenecomposer/src/com/jme3/gde/scenecomposer/Bundle.properties b/sdk/jme3-scenecomposer/src/com/jme3/gde/scenecomposer/Bundle.properties
index 9777bf0f0..22237659e 100644
--- a/sdk/jme3-scenecomposer/src/com/jme3/gde/scenecomposer/Bundle.properties
+++ b/sdk/jme3-scenecomposer/src/com/jme3/gde/scenecomposer/Bundle.properties
@@ -53,3 +53,5 @@ SceneComposerTopComponent.emitButton.text=Emit All Particles
 SceneComposerTopComponent.jLabel6.text=Physics:
 SceneComposerTopComponent.jButton2.text=
 SceneComposerTopComponent.jButton3.text=
+SceneComposerTopComponent.jButton2.toolTipText=start the physics simulation and add all objects to the physics space
+SceneComposerTopComponent.jButton3.toolTipText=stop the physics simulation and remove all objects from the physics space