Hi,
I understand the first part of your request and I will answer that HikaShop business have ACL features which allow you to allow or forbidden some products depending the user group.
For the second part of your message, I am sorry but I don't understand what you are trying to say.
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.