Hi I want to build a backtrack function where the user can go x steps back then working. I am currently trying it with the eventBus with this tutorial. Also I found this Entry in the Forum where I found the list of different shape and connection events. My problem is that only the shape/connection.added seems to be working but I also want to implement delete and moved.
Can anybody tell me the right event name? thanks in advance 
Do you mean undo? That’s a built-in feature of bpmn-js. Simply do modeler.get('commandStack').undo();.
Yes that was it 
. I didn’t know that this exists
No worries. Happy to help. You can also use CommandStack#redo (cf. diagram-js/CommandStack.js at develop · bpmn-io/diagram-js · GitHub). 
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