Taskmanager - as a realtime process

Hey
I would like to setup my taskmanager to work as a realtime process because
sometimes, some apps hangs up and they can do it really badly as a high
priority process than to kill them with a taskmanager which is also high
priority process takes a lot of time, and it's really tempting to press
reset. So how to set up taskmanager that if I press alt+... it starts with
realtime priority instead of high.
Jarod
.