Allow contacts that are online to float up to the top, which can be done in Skpye if you chose to. I don't see any way to do it in Teams.
Allow contacts that are online to float up ( Always On Top ) which can be done in Skype if you chose to. I don't see any way to do it in Teams. I don't even see a "tools" menu. Also seems to be a bug where the little 'status' icon on someone's avatar does not show their status accurately. I still have Skype with the same contacts list and it might show someone is 'online' when Teams shows them 'away' and only when you hover the mouse over their avatar on Teams does it change to the correct status to agree with Skype. Skype is always correct, where Teams is intermittently incorrect on status icon. So consider this a bug report too.