Pause Execution
When a test is being executed and you want to enter debugging mode you can
quickly set a breakpoint at some node not yet executed. Or you can just
hit the toolbar button "Pause" 
and
QF-Test will directly enter debugging mode.
In order to resume execution just release the pause button
.
This is completely independent of the way you entered debugging mode.
Depending on how focus demanding the SUT is, it may be difficult to focus QF-Test long enough to hit the pause button. But you can still rely on the "Don't Panic" shortcut Alt+F12. It will pause all running tests immediately. To continue, press the same combination again.