How to activate a blueprint w a trigger box

Hello I just got the timers and counters pack from the marketplace and they are awesome I’m using a counter to use it as a elevator screen so it counts from 11 to 7 but I can’t get it to activate once I hit E my elevator goes down but the number doesn’t change I was wondering if anyone has a solution o possible solutions to how to solve this.
This is the basic graph from the counter and how it works