Book multiple appointment types

Is your feature request related to a problem? Please describe.

I want to use NextCloud to handle booking drop-in courses at a community center. I have different types of classes (pottery, dance, drawing, cooking, etc) and each individual class has a different attendance cap. My clients are diverse but include a lot of people with low internet or tech literacy, so this system needs to be straightforward for them.

Describe the solution you'd like

Right now when I create a different "Appointments" entry for each kind of class, each generates a distinct invite link. I want there to be a shared invite link I can give out. It could be, say, the appointments link for all appointments attached to a specific calendar, or it could be an appointments link generated for a chosen subset of appointment types, I don't mind either way, so long as the clients get a single page with all available appointments (even including when those appointments overlap -- though I don't think we'll be running more than one course at a time in our space).

Describe alternatives you've considered

YouCanBookMe.com supports appointment types. But I don't think it supports blocking out specific time for specific appointment types.

Additional context

If I make multiple appointments

They have separate sign-up sheets:

Start by reviewing the existing Appointments invite-link flow in the Calendar repository and how separate appointment entries expose their sign-up pages. Define how a shared page should combine appointment types, including overlapping availability and individual attendance caps; done means clients can use one link to view and book the available classes without losing those constraints.