Just an FYI (even though I know the BREAK[KEY] is not currently supported (MaVerick version 0.3 (build 0.3 October 10 2007)):
the following compile for me:
YES=1
BREAK YES
BREAK ON
BREAK OFF
BREAKKEY
the following do NOT compile for me:
BREAKKEY ON
BREAKKEY OFF
BREAKKEY YES
BREAK
Just FYI, Tracey