Rated 5 out of 5 stars

Thanks for the great add-on! Some useful functions are still missing. Pls consider adding:
1. "Append to Session" option to allow amending currently open session or window to a previously saved session without re-opening it, and with sorting out duplicates
2. Allow at least 2-3 level Group Hierarchy to properly group multiple sessions to subgroups. Or allow users to create new folders in Session Folder via Windows Explorer, and sort existing saved sessions into them, while still accessible in SM
3. Allow Import Session from Chrome Session Buddy (https://chrome.google.com/webstore/detail/session-buddy/edacconmaakjimmfgnblocblbcdcpbko?hl=en), and Export Session in a format, compatible with it, for using saved sessions in both browsers interchangeably.

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