OpenGL Split Screen?

Is there a way to make split screen with OpenGL Collection?

I've tried it in many ways with no success.
-First, I've tried to use an OpenGL Base with half of the application screen height. Place it in the 1st Player position, render one camera angle, place it in the 2nd Player position, change camera angle, render again. Off course we can see only when it is the 2nd Player position.
-So, I've thought about render one screen and paste it. But it doesn't paste in background, or in Overlay Redux.
-I've tried to use 2 OpenGL Base, but only one works.
-Tried to use SubApplication object with OpenGL Base in other frame, again, only one works.