If boolean is not true, set delay and after delay: event happens

I have made a level and i want it to be that if you havent pulled the lever in 10 seconds
an explosion comes. I have made a Boolean variable called “LeverPulled?” and i want it to be
false when not pulled amnd true when pulled and if not pulled in 10 seconds event happens.

Use the node SetTimerbyEvent and add an event that checks the boolean variable. Then, based on that variable you spawn the explosion or not.

But how do i make "if BoolVariable is true… and false… the image below does not work

Now make a new custom event that you plug into the event pin on the timer. Then you spawn the explosion from that event.