I am curious if I can create specific items to RSVP for?

So, I am needing to know if I can create specific items within an event to RSVP for? One of the things that we intend to use our JEvents system for is adding RSVP's to events, that our members can signup for. Our site is going to be a public site, but we also have members that are added by an admin.

For example:
We create events on our Google Calendar for Football Game Concessions. At each concession event, there are multiple jobs that need to be filled, that people can sign up for:
2 Grill Cooks
2 Grill Wrappers
2 Home Side Cashiers
2 Home Side Expos
Etc

My question is, can we create an item for each of those things or can we only create a signup for the event that we can allow X number of people to signup?

Thanks!

Jay