My code is from dxw00d, from second post, and i would like to have 4 press button or doubleclick action response (with action D)but imagine a fine state machine, when press.. Generally, such buttons are connected to large scale functions, beyond a regular fire alarm, such as automated shutdown procedures, complete facility power cut, fire suppression like halon release, etc. Terms for... https://pad.geolab.space/mw2FPa7hQB2r0ZF5Uuf7Yw/