There's a text box and a checkbox.
The text box is for the numbers. If you want event 1 enabled, you write 1. If you want 1 and 2, you write 1 2.
The checkbox sets whether you're enabling them or disabling them.
toggleEventEnabled is the same, but without a checkbox; it just toggles it.
Mega, WHAT? There's no way to do an event within an event. You could use the ifPrintThenRelay for that but it'd be 2 events.