Hi,
The user groups are related to Joomla users.
In the HikaShop backend you can't access to that information when you display the customer profile ; but you have a button in the toolbar to display the Joomla user profile.
I clearly understand your feature request and your point of view.
It could be an interesting feature but we have to be really careful with that. The Joomla user groups can give more than price accesses, it can also provide a backend access to an account.
That's why, if such feature is integrated in HikaMarket ; the admin won't be able to assign any usergroup to users but only few selected one and HikaMarket should not touch the rest ; like it should not allow to edit an account who have some admin accesses (or give admin access).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.