Section Heading can be used to divide fields into several groups.
For using Section Heading, Create Section Heading field from User Meta >> Fields Editor.
Now, go to User Meta >> Fields Editor. Drag Section Heading where you need to group your fields
e.g.: Form editor page with using Section Heading.
Generated fields: It will generated all the field sequential in section heading-01 (username, email, password) & section heading-02 (first name, last name, nickname) as per selected form edit field wise (show in below img-02).