Is it possible to have more than 3 video/audio layers in Rush?

Hi Folks, is it possible to have more than 3 video/audio layers in Rush?

I have to cut video of the school music band. They are 10 Kids playing at home, and I have to put them together on the screen. 

I know I can do it in Premier, but I tried and it was waaay to complicate for me.

Thank you!