Start by selecting the "Create" button in the upper lefthand corner of your screen. From here navigate to any record type (we will not be creating an actual record.) On the location section of the record type select "Add Location."
On the next screen you will search for the location that you are trying to add a unit to and select that location.
Underneath the address of the location you selected you will see a drop down list that says "Unit." When you select this you will see the option to "Add a Unit" on that list. Once this is selected you can type in the name of the unit that should be added and this unit will be added to ViewPoint Cloud.