Below are some simple examples of InterGateway (NMI) payments:

Simple Pay Button

Quickclick Fixed Price Button will redirect to the gateway requesting payment for a fixed $10.00 amount

Open Payment Amount

Quickclick Donation Button to allow customer to enter a payment amount prior to directing to gateway (uses donation button)

Blue product $9.99

Quantity

Red Product $19.99

Add to Cart Simple Shopping Cart

Ability to add multiple products showing quantity here is optional

Check Out

Collect Checkout Method

One Button to finalise shopping, this best used with a script to customise the products and amounts added prior to the creation of the button form. This sometimes used in a popup overlay on a shopping cart