Video Unity Recorder 360 with multiple cameras?

I have a scene with two cameras, one to render a cockpit and one to render the scenery outside of it (with the cockpit one drawing second, and doing a depth-only clear). But when I try to use Unity Recorder in 360 mode, I just get a distorted copy of the cockpit outside the cockpit, and I don't see the scenery at all. I'm prepared to work around it by rendering two individual passes with Alpha and setting the cockpit clear to Solid Color, but is there some option I've missed that would let me do it all at once with multiple cameras instead?