Feature Request: Add tab to session/Create new session

[darsnack]

I would like to use SessionRestore to organize my many tabs. Right now, I need to move all the tabs I want to add to a session into a new window, then create a session from that window. Or just create a new session, then open SessionRestore to delete the extra tabs that don't below in that session.

It would be great if from the extension button in Safari, I could:

1. Create a new session
2. Add the current tab to sessions

[SweetP]

@darsnack you can already add the current session/window/active tab to any already saved session: