For scenarios where you have multiple people living in the same unit, we generally suggest you create one principal tenant and define the remaining people as occupants in the tab Occupants.
If however you need the tenants to be completely separated such as a boarding house or where the rooms are individually rented out, then as an alternative we suggest you create additional units for the property, one for each "bedroom" or real unit rented. In other words, Unit 101 that has 4 rooms would actually be unit 101-a, 101-b, 101-c, and 101-d because in effect each bedroom is really its own unit with its own Tenant, its own Leases, and its own Accounting (rents paid, etc.)