Hey there, @HopFriends - thanks for your question! You might benefit from reading our Company Admin Guide as well as our New User Guide. 

That said - this can be done, but requires a bit of a work around. From the event type settings themselves, you will only be able to set one invitee limit that applies to all time slots/bookings in that event type. However, once you’ve done this you can head to “scheduled events” > “details” next to whichever date/time you please and update the invitee limit for individual time slots there. I went over how to do this in response to another post, recently, and you can see screenshots and more details there by clicking on that topic below: 

I hope this helps!