Event
loop button functions
These buttons control the event loop operation. Here
the blue buttons control event by event displays. (9/17) These now
just turn on the displays for the corresponding tasks, but in future they
may bring up a separate panel to choose the display type and alter parameters.
The aqua color buttons allow you to start/stop a delay loop pause during
which no new events are brought in and you may change from one type of
display to another. Displays are refreshed even if not altered whenever
any panel button is clicked. Display settings during a pause will
affect future event by event displays after a pause, and display parameters
may be changed "on the fly". STOP ends the event loop in the same
way as if the number of events were set to the current total. HELP
functions as during initialization.