Is it possible to create a new Media Library Bucket in Twill 3

Hi! I'm a software eng at the Art Institute of Chicago and we use Twill as our CMS. We're trying to separate images into two separate buckets either via a new mediables-esque table or configuring a new S3 bucket connection and having it displayed as a separate tab in the add media modal. We've got something sort of working but the way we're doing it is hacked together. We're building twill and then copying a new version of the media library related code and adding our own versions of the vue's. This isn't the best in terms of maintaining but it's the only way we could get it working. Is there a way in Twill 3 to configure new buckets/tabs in the mediables field so we can differentiate the images? My take on it is to add some sort of differentiator when saving the media in a column or metadata but we're not sure if it's possible.