Step 1: Click Fees and select Define New Fees in the drop down options.

Step 2: At the top of the section, click Enable Recurring Option.

Step 3: Fill in the relevant fields as explained in the previous article http://support.easypaymentsplus.com/fees-section/how-to-create-a-new-fee-that-requires-full-payment/

Step 4: Scroll down towards the bottom of your screen and fill in the relevant details in the Recurring Section.

Frequency- How often the client will pay their instalments.
Instalments- This defines how many payments the client will make.
Fixed Start Date- The specific date you would like the client to start paying the instalments.
Variable Start Date- Switch this to Yes if you would like the client to begin their instalment payments based on the day they setup the plan.
Enable to Pay in Full- Set this to Yes if you would like to offer the option to clients to pay in full rather than in instalments.

Step 5: To save the new fee, click Add New Fee Definition or Click Update Public if you're editing an existing fee item.