Hi,
A vendor is a special entity.
A user can have vendor rights and a user could register as a vendor.
In HikaMarket you can create two Joomla menu items. One to access to the vendor registration page and one to access to the vendor control panel.
Thanks to the registration, a user can create a vendor and thanks to the control panel, he could manage his products and his orders.
A vendor could only edit his products. The "edit" button would only be displayed if the products could be edit by the user.
You can assign some products to the vendor directly in the HikaShop backend. While editing a product, you would fond a "Vendor" option.
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.