@Phaedrux well i wanted to have them turn on automaticlly now i have to sitt and babysitt the first 2 layers just to wait untill layer 3 to kick the fans on.
that´s why i asked if it was possible to detect when the normal partcooling fan kicks on to also kick on the side fans.
now i have a macro that i start and stop the fans with buth i wanted it to be automaticcly