@C_Evans isn't this now available? Under the "Project" menu selection "open previous versions"? Edit: Oh nevermind, you get the history of the one, but thats not the full functionality of the original question.

@davio51457897 Plus one. I am trying to create a fallout with 7 steps, each having multiple criteria. It's literally impossible to use when the visualization nears viewport size. 

I just noticed, that I totally had not deleted a panel on my workspace at some point today/last Friday. Possibility to revert, check older versions would be appreciated as currently I can only rebuild.