You can “collab” on Instagram, but what about on Twitter? The social network is continuing to work on a feature that would allow multiple users to co-author a tweet, which it’s referring to as “Collaborations.” The option has yet to be made publicly available and only works after one user accepts a request to collaborate from another. It also seemingly hints at a possible plan to give creators a way to partner with businesses on brand ad deals — something that’s already common on rival social networks like YouTube, Instagram, TikTok and others.