TT and multiple units not all rented all year

With TT 2023 the program asks if the rental property has been rented all year.  Parts of mine were not rented all year, but the next screen only offers the number of days it wasn't rented as though it were one single unit.  How do I differentiate this?  I have TT marked with a multiple-unit property.  ONe unit was rented all year, one other was not.