We have a video guide on changing the order of Payment Types in Retailer - ðŸŽ¬ Setting Up Payment Types
  1. On the top menu bar of Retailer, click on Setup - > General.
  2. Click on the Pay Types tab.
  3. Double click in the sort order box of each pay type and assign each a number based on the order that you want them to appear in the subtotal screen. Make sure you start at number 1 and there are no numbers missing in the sequence. 
  4. Click Save.

When you access the Sub Total screen, the payment types should be in the order that you specified.