In most templates, the registration/login control is enabled, but you can choose to disable it by clicking on the registration links at the top of the page in the website editor and select it.
Your options are:
- Disable control
- Choose the page where the "My Account" control resides.
- Require or Hide the phone number field
- Require or hid the Postal code field
- and change the Postal code label.
- You can also add HTML to the registration pop-up to provide more information about signing up.