tsclient should suggest the user how to switch from fullscreen mode to normal window mode

Binary package hint: tsclient

If you select to connect to a remote host, through tsclient, in fullscreen mode (option provided by tsclient in the Display tab) you don't see any tip to switch to normal window mode (not fullscreen mode) or, at least, to switch back to the Ubuntu Desktop. To discover this (it seems you have to enter ctrl^alt^enter to do this) the user should search for an help from web forums.
A simple solution could be displaying, near the string "Operate in full screen mode" (in the Display tab"), the key combinations to switch back to the Desktop of your host.