Right now we only have the Frontpage (subscribered communities), local (Instanz) and all, something I miss would a similar feature like multireddits we had on reddit. An own Feed or multiple different Feeds with each their own subscribed communities. Pluspoint if these communities do not show up in the Frontpage list :)
That would be really cool! I think it has been suggested on GitHub so I hope it will be developed soon! :)