Rated 5 out of 5 stars

Great add-on, I really wonder why this is not factory built in TB. Many thanks to the developer!
Ideas:
(1) It would be nice to have an option to align left the buttons as well (mine align to the right)
(2) It would be great to have the "unavailable functions" in a message (such as "Smart reply" when there's just one recipient) being greyed-out instead of removed, so that the order and placement of buttons doesn't change from one message to another.

Thanks again!

This review is for a previous version of the add-on (2.0.4).