I was just doing some trial and error and realized that when i am adding “screen_scale” routine in between (as required in my experiment) other routine, program is not going there.
I also added code component at the beginning of my program, only begine experiment part, still not doing.
Sorry but I’ve got too much else on my plate at the moment to think about this at the moment. It might be that some code needs to come in the first routine and other bits can come where you want the screen scale code.