Ctrl+Z undo after pressing individual buttons

I have been trying out this great tool. Thanks for making it available!

While I was using it, I accidentally clicked the wrong alignment button and I wanted to undo that individual step. I was thinking that it might be nice if the individual alignment and distribution buttons were undoable (individually). I think that, right now, the entire operation of steps that are done while the dialog is open are undoable as a whole (which is nice, yet maybe a little more granularity would be useful).