How can I set movie as a thumbnail of store?

Site URL: https://www.araddin.co.jp/kyoto-harajuku-select-shop

I want to use movie as a thumbnail of some products on stores.
But current function doesn't allow me to insert movie.
Are there anyone who can teach me advanced setting?

Let me share background. I want to use function of store (payment, shipping). On the other hand on my business movie of product is quite important tool. So I want to bridge between them. I would like you to teach me anyway.

Did you check we create live streaming and let me know if any problem in this site. thank you.

Ho wcan we set movie thumbnail on post  movie Pro Box