Feature request

What problem does this feature solve?

The ability to blacklist certain LEDs.
In my case the led strip starts at the middle bottom of the TV. I want to completely ignore (blacklist) the first leds as my tv is on a stand and I don't want the bottom to light up. The leds are actually there so I don't want gaps. I believe hyperion ng has a blacklist feature implemented?
I've tried manually disabling leds by putting these values at 0 for the leds i want to ignore:
{
"group": 0,
"hmax": 0,
"hmin": 0,
"vmax": 0,
"vmin": 0
},

However the Leds still light up.

What does the proposed API look like?

How should this be implemented in your opinion?

Preferably with a UI option, however if it can be done manually I would like some help on how to set it up.

Are you willing to work on this yourself?

I would if I knew how.