I would like to suggest a feature that allows users to mark a plane (or more than one) in IF-live map view.
When I fly with other users or in a team I sometimes loose visual contact. Then I switch to map view to locate them again.
My own plane is white, so I know where I am. If I had marked planes before (e.g. gray, green or a larger symbol) I would now be able to find them instantly.
Fairly often there are only a few pilots around. No sweat then. However, some regions are mighty popular and whenever there is one of the special events it gets real crowded. So it might be worth considering