event chop

Quick question:
In operator snippets > Event Chop > python trigger
Clicking the button adds 10 samples to the Channel but I don’t see where this number comes from. The default behavior is to add 1 sample per event.

What parameter determines the amount of event per click?

Ok nevermind,I found the answer: the PannelExecute is set to whileOn and will execute the code (createEvent) as many times as it can during the pulse of the button.