can we dynamitically change the resolution of tsclient or krdc

[loody]

Dear all:
each time before using tsclient and krdc, we will set the resolution first.
My question are:
1 Can we dynamically change the resolution after we connect to the
remote computer?

2. when I set the resolution as full screen, how can I jump back to my
Ubuntu desktop? Can I open tsclient at one workplace as full screen
and change to another workplace dynamically?

appreciate your help,
miloody