Create timestamp repeatedly on the Inject node
When Switch node is on The counter starts at 1 to 20, If the counter value exceeds 20, counter from 1 again.
debug node outputs timestamp Output up to 20, Until the Switch node is turned off.
When Switch node is off stop debug node.
Switch node is on debug node work again.
its difficult to understand your requirement, so if you stop the counter, you want to reset also, or you want different controls ?
check this if it is ok for you.
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