Support undo/redo

[Camork]

• [x] I have checked that this feature has not yet been suggested by someone else.

Do we have a plan to support the undo/redo command?

[sbegaudeau]

Undo/redo would be a great feature but it comes with some unique challenges in a collaborative environment. If Bob and Alice are working on a diagram. Bob creates an element then Alice creates a new reference to this element. Bob wants to undo the last change, what is undone? His change or Alice change? What if there are 5 persons working on the diagram and new changes are coming very quickly so while Bob wants to undo something others are adding new changes again and again? Since they are working on the same project, now let's consider that they are both manipulating the same data but using different diagrams for example.

I'm not saying that it can't be done or won't be done, far from it, but it would take time to specify the user experience that we want to provide and to build it.

[luxingxiao]

If we want to implement this feature ourselves, any suggestions? Sirius-web front-end does not seem to provide a command stack.

[dvojtise]

+1

this would be really useful , especially when discovering the UI and creating elements at the wrong place, it that case we need several click to delete the element instead of a simple Ctrl+z