diff --git a/repository/OpenPonk-FSM/OPFsmTransitionController.class.st b/repository/OpenPonk-FSM/OPFsmTransitionController.class.st
index dc5bf5c..69f6cb4 100644
--- a/repository/OpenPonk-FSM/OPFsmTransitionController.class.st
+++ b/repository/OpenPonk-FSM/OPFsmTransitionController.class.st
@@ -23,11 +23,6 @@ OPFsmTransitionController >> internalSubscribeTo: aModel [
 	aModel weakWhen: OPElementRemoved send: #removeControllerAndDiagramElement to: self
 ]
 
-{ #category : 'testing' }
-OPFsmTransitionController >> isHideable [
-	^ true
-]
-
 { #category : 'accessing' }
 OPFsmTransitionController >> modelClass [
 	^ OPFsmTransition
diff --git a/repository/OpenPonk-FSM/OPFsmVertexController.class.st b/repository/OpenPonk-FSM/OPFsmVertexController.class.st
index 096c8b1..0a36746 100644
--- a/repository/OpenPonk-FSM/OPFsmVertexController.class.st
+++ b/repository/OpenPonk-FSM/OPFsmVertexController.class.st
@@ -90,11 +90,6 @@ OPFsmVertexController >> internalSubscribeTo: aModel [
 	aModel weakWhen: OPElementRemoved send: #removeControllerAndDiagramElement to: self
 ]
 
-{ #category : 'testing' }
-OPFsmVertexController >> isHideable [
-	^ true
-]
-
 { #category : 'destruction' }
 OPFsmVertexController >> removeModel [