As luck would have it, we have TONS of room on the Options as Sub page, and that is a thing we consider strongly when adding options.
What your saying makes perfect sense, and with the lighting example even moreso.
Thinking out loud here: is this separate from Send Current Value, or an add-on to it (e.g., can this work without Send Current Value being on)?
Also: this is only for knobs, sliders, etc., right?