If in DR in light properties I set the light type to blamplight or blamplight2 and make it switchable via some switch, it does not go on or off via the switch. When I use blamplight_cv for example I can do that. I also found that if I change the color of the light, I don't see this in-game, there it's still white (if I've set it to yellow). Maybe this is normal for this type of light, but it should be in the description what it can and cannot do.