I'm switching from QTTabBar to MC, and I'm really missing the easy manipulation of tabs into groups/favorites of the former. Whereas MC does have a "favorites", but it is really inconvenient to add an existing tab into favorites (For example in QTTabBar, I can right click on a tab and select "add to group"), and it is not easy to restore or open all tabs of a specific group (or a "section" in the favorites). Another feature that I'm missing is the "recent tabs" of QTTabBar, which will keep a list of tab history and also the recently closed tab. It will be really convenient if MC can have these features. Thank you.
MC do not support tab groups. (If with that you mean that is should changed multiple tabs, and open new tabs if needed with the press/selection of a command)
BUT you can create that your self with script. and assigned that to a hotkey.
There was a script for that here a while ago..