This article is in the Studio section of the App.
When designing in Studio, you are able to undo and redo changes that are made.
For example, if you lay out some panels:
You can then undo this by pressing cmd(⌘) + Z OR ctrl + Z:
You can also then redo this by pressing cmd(⌘) + Y OR ctrl + Y:
Note: If multiple changes are made while the system is calculating then pressing undo will undo all of the changes.