Chroma Key/Green Screen/Alpha Channel

Chroma Key/Green Screen/Alpha Channel capabilities would make this app much more useful. 

I understand that Premiere Pro has these capabilities; I don't want to use Premiere Pro. It's inefficient for the things that I need to do. (Everything I need is buried in menus. I don't have time for all that.)

I also have a basic video editing app on my phone from another company that does Chroma Key well enough, but I'd rather edit video on my computer than my phone.

Premiere Rush is supposed to be for mobile video. Chroma Key/Green Screen/Alpha Channel usage are all over social media and a necessary part of anyone's Reel repertoire. Rush should really be able to do this. 

Thank you.