Hi,
It is possible using a custom plugin.
Because we didn't see a generic schema we can't propose that feature for the moment (but I hope that we will find a good way to allow it for almost all users).
So for the moment the best is to create a custom plugin and change dynamically the vendor root category depending another value.
The idea is to use the trigger "onAfterVendorCreate" and modify the vendor object to set the vendor root category.
www.hikashop.com/support/documentation/1...#onAfterVendorCreate
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.