To rename the registration form field, you can follow these steps:
1. Go to the field that you would like to rename, click on the "Arrow" to expand the field details
2. You can change the form name of the field at Question Name field. You also can change the placeholder title and the error text.
For Standard Question Types, please note although you change the field name, it will not affect the field name in Attendees Details.
Standard Question Types
For example, if you rename First Name to Full Name, in the Attendees database, it will be saved under Field First Name
Attendees Details