Multiple panel layouts
I've seen multiple requests to be able to "hide" certain panels from appearing below the stream as opposed to just deleting them and having to remake them again later, but to expand on that idea, I'd like to suggest being able to have multiple layouts for panels available to use. This would be useful for variety streamers with multiple games they play regularly, people who do different types of streams on certains days (some streamers have sub sunday, etc) and would also be useful in creating panel setups for events like charity streams.
With multiple panel layouts available we'd be able to tailor our panel setups with more information relevant to the particular stream!

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TombPlays commented
Agreed. Some more elaboration provided below
Quality of Life Suggestion:
Saved presets for Stream Information including Title, Go Live Notification, Tags & Category.
i.e. I click Subnautica from a dropdown or as the category and it fills in what I last used for that category.
Or be able to set multiple different "Stream Informations" manually to choose between -
playTriviaLA commented
Allow users to save their customized layout and switch between multiple options.
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CathesComicZ commented
It's great that I can visit my channel on Twitch.tv and add my streaming information, but that's not going to make my streaming better via the app. What I would like is to preset the Stream information panel and pull them up as I use them (ie. Sims 4- Casual Build, AMA, Chat for one option, Game X FPS- FPS, MMORG, Viewer Join-in, Podcast- Just Chatting, Podcast, TOPIC X) that I use over and over. SO that way I don't have to keep re-pasting from a text file information I already know I'm going to re-use.