Pause: Pause this query.Execute Normally: Run until paused or aborted.
Next Port: Run until next port.
Execute Predicate: Run until
predicate is executed.
Execute Parent: Run until parent is executed.
Next Point: Run until next spy or
Prompt full: Prompt on call, exit, redo and fail port.
Prompt half: Only prompt on call
and redo port.
Prompt off: Never prompt on port.