Hello,

1b,c. Yes, you are right.

2. You are welcome!

2b,c. There is only one video element, unfortunately.

3. It makes sense, our team will consider it.

3b. Recently Viewed products can be shown only in the widget areas (https://prnt.sc/25zkglq), sorry.

Here is a custom code for adding scroll for the widget.

.widget_recently_viewed_products {
    position: relative;
    overflow-y: scroll;
    height: 100% ;
    max-height: 350px;
}

https://gyazo.com/59d79d71e7d65abdae15ec595b4f3877

Kind Regards