They wouldn't be related to the feed or anything in the feed. I'm using the FAB here as a create button and you have 3 options to create something.

If we're creating events we would also need a way to browse scheduled events too. I'm guessing add a feed of NIP-52 events in the "Other Stuff" tab? It might make sense to show them in the main feed as they're created too? 

 For flow, maybe the FAB is just a ➕ icon and when you tap it, it grows upwards into ✍🏻, 🗓️,🎙️ with the ➕ being turned into an ✖️ to compress the FAB back down into a ➕.