Im trying to place a script for roller door control. I have an ELV output unit connected to 3 x roller door controllers 1 output to each "Up" and "Down". I would like to setup the ELV outputs as "momentary" like a "bell press". I have been trying to write a script to return the level back to zero after "3 seconds". The script I've written has saved with no "errors" but no action happens.