Ability to add overlays like sub/follower goals, and other useful overlays that are similar to the overlays Streamlabs and streamelements have. I really like the twitch studio I hope it gets these features! Otherwise great work on the software!!
Also, it will be great if the whole software would be accessible via an overlay, like Radeon ReLive or Steam, which makes it easier to be accessed for low-budget single monitor/single system users, to change their programmes more easily mid-stream (eg. switch to new screen/game, followup chats and view statistics --maybe as non-streamable overlays, like Radeon Metrics-- and edit texts in layers).