I was curious as to what the max depth is for multiview?

I believe it to be 2 levels, but not sure why.

I have an input of transparent color (base)
I have two other inputs of games to bring in based on what is being played (G1 and G2)
I then have an input acting as a stage for multiple sets of players (Stage1)
Multivew = MV

Stage1
--MV1 - base
-----MV1 - G1 player1
-----MV2 - G2 player1
--MV2 - base2
-----MV1 - G1 player2
-----MV2 - G2 player2

The tree above, both G1 and G2 of both base are not visible unless they are the Main.

When the players switches games, I would like to create a shortcut that disables the MV at index 1 and another that enables the MV at index 2. Currently I have to manually change the input source when we change games in the middle of a stream, times 5. I would like to streamline this a bit.

I have 5 stages that I cycle through that show all the players, with one being the largest screen. Attached is stage 1. Each player has their own stage.

Thanks,