[nathanstitt]

Sorry it didn't work :( I just tried and looks like it got _so close_, it did undo the insertion of values, but the selection remained. I think that's probably debatable behavior, but isn't what Google Sheets does.

I may be mis-understanding what you experienced though, If you'd like to provide more details and/or some screenshots please file a issue https://github.com/tinycld/calc/issues