Stream library restriction

I really like the Cloudflare Stream plugin. My only issue is, is there a way to make it so certain user roles such as Author and Contributor can only upload and not have access to the Stream library?

Also if you guys added automatic thumbnail creation that would be great. And even a step up from that would be the motion thumbnails. Anything to make the plugin resemble YouTube uploader.

Also if you could use it with Classic editor and Elementor Pro

Might sound like alot but this plugin is great and has so much potential.
Thanks for the development and take care