You can manually add and maintain your customers from the Customers menu. Additionally, the Customers themselvs would appear in the listings by using the online store registration form.
Manually Adding a Customer
1. In your admin panel > go to Custmers > Add New Customer in the top right corner.
2. Once you open the menu, you would need to fill all boxes with the required information:
* Customer First Name
* Customer Last Name
3. The following options are available for your Customer:
* Customer Note - You can write an additional information/comment for a customer, which will be visible only for you.
* Customer Group - If you had not created a Customer Group yet, you should set the option to Default.
If you have any previously-created Custom fields, they will appear below the Customer note as an additional choice.