Injecting Wordpress Variables into Generateblocks

I was wondering if it's possible to inject say, a featured image of a page into the background of a Generateblock container.

1. Was hoping I can setup a Sitewide Block Element and control the hero section this way.

2. In fact, is there a way to inject an ACF field into the Block Element? ie. say each page has a ACF and I want to display this as text, just wanted to do it with automation and sitewide.