Open a lease. For more information on how to do so, see section 4.6. or 6.1.
Go to the lease card (see image below).
Click the tab called "General" (see image below).
Specify that the debit address for the lease you are working with should be fetched from the tenant you set for it by clicking the field "Debit address from" and then selecting the tenant in the list that opens (see image below).
Set a debit address for the lease you are working with by clicking the field "Debit address type" and then select a debit address in the list that opens (see image below).