GrandNode allows you to create unlimited vendors accounts. First part of article describes Vendors Settings, second desribes each aspect of multi-vendor support.
To manage vendors you should go to Customers -> Vendors.
If you want to add new vendor, just click button in the top-right corner "Add new". You will see following window:
Here you need to fill following fields:
Name - Vendor name
Description - Vendor description
Email - Vendor email
Picture - Vendor Picture
Store - You can assign vendor to the specified store (Only if you are using multi-store feature)
Admin Comment - You can enter here your note, it's vissible only for administrators
Allow customers to select page size - Customers can choose how many vendors they want see on vendors navigation block
Page Size options - Enter possible page size options (comma separated)
Active - Is vendor active or not?
Display order - Display order on vendor navigation block
Allow customer reviews - Check if you want to allow customer reviews about vendor
Company - Enter the name of the company
Country - Select country
State / Province - Select state/province
City - Select city
Address 1 - Enter address
Address 2 - Enter address line 2
Zip / postal code - Enter the postal code
Phone number - Enter phone number
Fax number - Enter fax number