Maps can now be expanded and locked regardless of AntiClone status. This isn't configurable because it seems unnecessary when locking a map will also prevent expanding. This can be changed if desired.
Users will now receive an error message if the item held whilst using the add or remove command is not a filled map.
AntiClone has been tested on 1.16 and appears to function. Lower versions couldn't be tested currently but API version was set to 1.14 so if anyone tries to run it on lower versions and it works, I would appreciate if you threw a comment in the discussion.