Thank you for posting here in Community, @secretary-cca.

I appreciate the detailed information you give. Let me provide additional information with the Make Payment option. The Schedule payment is on the Expense tab. However, if you want the Make payment option,  you can go to the vendor itself and check the transaction list where Make payment is available.

Let me guide you in going to Make payment option:

1. On the left navigation pane, go to the Expenses tab then select Vendors.
2. Look for your vendor then click the vendor's name.
3. It will take you to the Vendor transaction list where you can choose Make payment .

I'm attaching this article on how you can run a vendor report for your future reference: Run a report with vendor totals.

Let me know if you have additional questions, you can post it here in Community. I'm always here to answer those questions for you, have a great day.