How change on/off a Emissive (into light)

Hey guys, I have a problem with the lights, basically I put lights (spots) in my scene, I can usaro switch to turn on and turn off the lights, but when I turn off the lights emissive is enabled, I wonder how to enable and disable emissive along with the light, thanks.
Follows the example image:

Was this solved? I need to do the same thing.

What you need to do is use a material instance dynamic: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/MaterialInstances/index.html
and have some parameters hooked up into your emissive settings: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/HowTo/EmissiveGlow/index.html