Use Jomsocial registration form

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : Essential 2.3.1
-- Joomla version -- : 3.3.1
-- PHP version -- : 5.3.28
-- Browser(s) name and version -- : Safari 7.0.4
-- Error-message(debug-mod must be tuned on) -- : Error_message

If a customer is not a registered member of my site, can I direct them to the Jomsocial registration page, instead of using HIkaShop for registration? I have questions on the Jomsocial registration form that I require them to answer while registering. If this is possible, where would I enter the URL to the Jomsocial registration form?
Thank you

OK thank you.