How could I go about split screening two shots in matinee?

[JoshieZombie]

I’m working on a cinematic and I’d like to get some kind of frame split between two cameras in several shots.
I’m not entirely sure it’s possible. I can do it in post later if it cannot be done, but I’d prefer if it were done in-engine in matinee.

[anonymous_user_883adf72]

I need the same thing, someone knows?. Im trying to do something like this,