Echo Space Lockout Options

I'm testing some setups in the Concert Demo system, and I had some questions about Space Lockouts.

So it seems the Keyswitch is the only hardware device (other than Echo Touch) that can lockout a space... is that correct?

I'm hoping to put a simple button station in a room that will be used for simple studio use on youtube, and was hoping to put an occupancy sensor with 2 button station in the room. The idea being that Press and Hold the Lower button would Toggle lockout of the Space, so the lights don't move from the Top button or Vacancy detection.

On a similar note, it seems a bit strange that the Push and Hold and Double Tap Settings seem to Come and go when they feel like it. Is there a section of the Help Manual I'm missing that explains when those options are available?

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