I see in the button editor for scenes and switches there is a button on top that changes Blind-->Live or Live-->Blind. In most of the scenes and switches you can click on this to change and it turns on and off the DMX output. I have a couple of built in 'Center' switches that have the Blind-->Live button locked in the off position and I can't figure out how to unlock it to toggle it back on. One in particular is the Martin MX-1 in the Scanlibrary. This fixture also has the problem of showing light in 3D Easy View when all DMX output is off.