preventing trigger from betting on same event with multiple markets

Hey,

So I'm placing bets on over/under markets but I only want the trigger to be allowed to place one bet in each event. I know how to only place one bet per market but how would I go about blocking the trigger from placing bets in a different O/U market on the same event. It's a recovery loss plan so there is only one bet at any given time.

Hi
Set the betting trigger's execute field to once per sports event