copying question master slide into a new slide master

Hello all,

I want to copy the default question layouts into a new slide master so I can manipulate the background, positioning etc.

I know I can build the slide once in the main scene and just copy, but I'm expecting to get a few graphic changes from my end client and thought it would be easier to just make the changes on the master.

Is there a way to just add that layout without having to build an entire new slide master?