There are 2 options for setting up reoccurring payments.
1. Memorized AP Invoice - If you would like it to go through AP then you would create an invoice and once you had filled in the invoice you can click 'Memorize' under the Action dropdown at the top left of the invoice entry screen. You can also select the 'Mark As Paid' toggle on the top right side that would mark the invoice as paid once the bill was approved.
2. Bank Expense - Create a bank Rule for any expenses that aren't going to be tied to an AP Vendor. Any time a transaction comes in with the values you tell the system to look for, it will code that transaction to the account, location & vendor you set. In the Bank Activity window (found in the 'Banking' dropdown on the top ribbon), select 'Get Bank Activity'.