@TsFreddie the assert on group layer count is intentional. Obviously this is not something we want to keep in the editor in the future, we want to inform the user of the limit reached and cancel.
20:22
As for the others, if you're not sure open an issue or @ me
like after you end up with [initial] (map) and [select tile 1], i would expect to have the ability to undo once more to revert back to the complete initial state [initial] (map) and [game tile layer]
when you move your text cursor on word/sublime text/vscode/whatever, if you press ctrl-z, it won't undo your text cursor movement, but the last thing you actually changed to what you are editing