I have cases where users remote view their desktops, but as a technician, I sometimes want to connect to those desktops to apply technical changes etc. It does not appear there is any way for me to detect that they are already remotely viewing at the time, so I find I have to sit and wait for 30 secs to see if the screen changes (by them). It would be handy if there was some way to tell there was already a viewer on that host. Its probably only an issue where I am trying to connect with Full Control. There could be several ways of making this known. 1. when making a view connection request, pop up to say someone is already viewing and do you want to view simultaneously. 2. on the view window title bar show the connection count, and maybe apply color to indicate more than one. 3. the address book icons show orange (online), green (logged on), maybe change icon to show connection in progress by making it blue or adding an arrow etc.
I'll forward it to our development department to see if this can be implemented in our future updates.
However, please note that it's already possible to see currently active connections if you use RU Server: the Active tab of the Admin Console window displays all Viewers and Hosts that are currently using this server for a remote session. For more information please refer to this page.