Works, but has conflicts. Rated 3 out of 5 stars

UPDATE: I've discovered that if I install "MR Tech Toolkit", then Unselect Message 1.3, everything works as expected. I can't explain why, but it just does. The MR Tech Toolkit is really worth having too!
I have not found a magic combination of must-have extensions that live peacefully with Unselect Message 1.3. By itself the extension works great. However, at least one or more of my other extensions causes my install of TB to lose cut, copy and paste functions...into and out of messages. My inefficient work-around is to resort to "Edit as new...". I've tried all kinds of combos of my extensions, but Cut&Paste does not return to TB until I disable or uninstall Unselect Message. That's a pity because this is a great tool that I rather NOT do without. Hopefully, something will change in future versions of TB that will resolve this disappointing conflict. Ideas anyone?