rule "detect light switching"
when
    Member of gAdamLights changed from ON to OFF or
    Member of gAdamLights changed from OFF to ON
        // ignore NULL or UNDEF changes
then
    val template = triggeringItem.name + "_pulse_"
    val button = gVlags.members.findFirst[i | i.name.contains(template)]
    if (button.state != ON) {  // it was not openHAB
        // then it was a manual change
        // someone is stood at the wallswitch!
        logInfo("test", "Who is there?")
        // code whatever you want, like updating a presence Item
    }
end