In the function window "Category Setting", highlight a Buyer Group and you will see its Attribute Setting.
Customization Enable:
If you have the check box checked, the Buyer Group will be able to conduct Product Customization and it means the buyers can bring up the customizations and negotiate with you.
View Stock Quantity:
If you have the check box checked, the Buyer Group will be able to see the stock info of each viewable product.
Default Main Page:
You can decide the user interface for the buyers by selecting from the drop-down list.
If the check box is checked, this service will be provided.
The drop down list provides 2 options: system default page, dealer special page.