To bring back one of my suggestions from the aforementioned thread -
What about finding some way to show your favorite props on the brick selector menu and allow them to be added into the brick cart?
Could have a separate tab in the brick selector just for props. Not sure how the categories or sorting would work, maybe by author or something.
Would be nice if people could store props locally, too, maybe also accessed through the brick selector. Might be useful for people who make something they can easily place but don't want to upload, kinda how you'd use Duplicator saving. Could be done through private prop uploads, but the reason I bring this up is because I'm worried RTB might experience some unexpected downtime or maintenance and suddenly everybody's building efficiency drops by half. Some risks present themselves in allowing people to upload directly from client to server but I doubt it could be much worse
than it already is, especially with some configuration options made available to the host.