[Feature Request] Right Click Tab - Set Default Group

[seniorm0ment]

Would be amazing to be able to just right click an open tab, then click set default group. Instead of having to click the Powertab icon.

Also after setting a default group, it would be nice to be able to hide the popup that comes up saying "You have set x to open in xgroup, are you sure this is what you want" or something along those lines.