I posted this question in the Usage forum since I didn't notice Professional Member Support forum before -
www.joomlapolis.com/forum/88-usage/164680-username-is-assigned-first--last-instead-of-email
Basically I want username to be set automatically to email address, but instead of email CB assigns firstname + lastname as the username.
CB Field Settings for username field
Required: No
Profile: Yes
Registration: No
CB Configuration
Login field type: username or email
Any other settings I missed?