This plugin is a must-have for a lawyer like me. I have several hundred of subfolder (one for each case) and this allows me to sort every message quickly.
The only thing that I would like to see improved is the way to search for a subfolder. I use another plugin called QUICK FOLDER MOVE which allow to search for a subfolder by typing only the first characters. It would be great to see such feature in COPY SENT TO CURRENT
This review is for a previous version of the add-on (1.1.2).