I would like to see an option for viewing/disconnecting an active session in the portal. This is useful for when someone leaves things acidentally up. Along those lines, allowing for a policy that automatically disconnected sooner than the 30 minute inactive limit would be great. Even 15 minutes would be helpful.
Also, if possible a way to message other team members active sessions. Sometimes I am full screen and will not notice another team member messaging me in a our own messaging app. If an "alert" type message could be broadcast to a teamviewer session, that would be awesome!