V4 beta Jun-6-2018 available now

 From:  Michael Gibson
8966.13 In reply to 8966.12 
Hi sandykoufax - this version has right click to push the cancel button disabled now, I have heard from a few people that it was not expected and I was worried about accidentally canceling file loading with it as well. If a command is showing a "Done" button instead of only a "Cancel" button, right click still works as a shortcut for pushing that.

I will put in an option though to restore the previous behavior for the next release.

- Michael