Light AOV passes Question - Alphas + IDs Tweet

[Aymeric_FX]

Hey guys, seems pretty straight forward but I can't seem to figure it out.

Is there an AOV pass similar to layer black shadows but for light emissions? (for when render layer option is selected).

What I'm after is instead of a shadow layer with alpha, its the light emission from the object (in this case a TV screen).

'Layer Reflections' kind of does this (obv renders a black pass with it so I can use add or screen modes to composite) but it includes all the lights in the scene and doesn't allow me to just select a certain light ID. I tried enabling light passes and removing the light emissions on the reflection object to see if that would work but didn't).

Using the Light AOV pass works but only when I don't have render layer selected. So its one or the other.

I've tried a bunch of AOVs but nothings working, does this exist?