You can see a video on how to create Merchant Names here. Or just follow the directions below:
To create a Merchant Name:
Choose Retailer Admin from the bottom of the Transaction menu.
Choose the + sign.
Select a Merchant Name. Click Done.
Select a Unique ID number. This is the number you will give your markets in sequential order, for example: 1,2,3,4, etc. Click Done.
You will be returned to the Edit Merchant screen. If you are done adding merchants, click Done. If you would like to add more merchants, choose the + sign again.
You can also learn more about why you would want to add a Merchant Name by clicking here.