Hi,
How do you want to separate your sellers and why do you want to separate them ?
Is it really the same products ? So same stock too ?
Do you want to check the language for the store or the shipping address of the customer ?
We need more information about your requirement if we want to propose you some solutions of implementation/configuration.
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.