How can we handle Variable monthly lease payments along with Base Rent Payments in Lease Accounting

We have a requirement to include certain variable monthly expense payments alongside the base rent payments in lease accounting.

Here’s what I’ve tried so far:

• Created a payment template for Base Rent.
• Created a payment template for Miscellaneous Charges.

However, when I add these amounts to the lease contract payments, the system splits the total across the number of payments equally and generates separate invoices in Accounts Payable (even though the supplier, supplier site, and payment terms are the same for both).

The requirement is for the variable charge to be added each month to the base rent and reflected on the same invoice, but as separate lines in the AP module.