background video in 907 theme

I’m considering to buy the 907 theme, it seems interesting.
Somethings I can’t seem to find out about,

-If you have a video going in your opening page background, can you run it in a loop?
-Does it include video with audio? The demo ‘builders’ shows only a quiet video background
-When you navigate the page, i.e. scroll down, does the video background keep playing? Which would mainly be interesting if the video has audio which you want to keep hearing while navigating the page.

Hope anyone can shed some light.

Better to ask the author directly, this is a general forum and not sure if he/she checks the threads.