I want to drag a contact from one contact group to another
Go vote for this post about the same idea. The more votes in one place, the better! (though it's been on the backlog for nearly a year, so... don't hold your breath)
Martin Jost commented
Had been using Jabber before - and Microsoft Teams just feels annoying.
This is one of the reasons.
Full ACK to Simon Jones.
Garrett Van Siclen commented
In addition to moving by dragging and dropping, copying a contact to different groups with a shift & click would be nice as well.
Simon Jones commented
This is basic functionality that should have been implemented BEFORE this awful program was forced on everyone.
Peter Matthews commented
I feel I have stepped back about 10 years at the moment
There seems to be no obvious way to copy contacts from one group to another