How to render Black and White image sequence?

Hello Unreal crew,

I have started with Unreal World few months ago with goal to transfer architectural animation from my usual 3ds max/Vray workflow into Unreal PBR workflow.
My question: Is it possible to adjust and render specific Black and White or Solid Color image sequence for specific group of meshes out of Unreal Engine that will later be used as masks? Something similar to the Vray Wire color render element. I am using After Effects and Nuke for post production for quite a bit and those additional image sequences are super useful for post work in these packages.

Thanks in advance.