Feature request: manual upload of thumbnail for collection sharing

We have a website that was captured a few years ago using ArchiveWeb.page. We’re now looking to make that available via our Browsertrix collections page, but would like to display a thumbnail for the site. The site is no longer live so the work-around of re-crawling the page isn’t an option.

Is it possible to request a feature for a custom thumbnail to be uploaded as a placeholder? Even being able to upload an image with the logo for the website would be greatly appreciated.