You can white-list websites using your category instead using the global white-list.
Using your category is more flexible because the white-list operation is made for each rule not for all users.

1) Create Your dedicated category for white-listing.

• On Your Proxy section, choose “Your Categories” link.
• On the main table, click on new category
• Set the category name ( less than 15 characters)
• Set the category description.
• Click on Add

• Click on the new created category in the main table.
• Select Websites tab.
• Click on Add Websites button.
• Enable the Force option.
• Give your domains you need to whitelist.
• Click on Add

• Click on the compile icon in order to install category data to the system disk.

2) Affect your white-list category to your rules.

• Click on webfiltering rules link
• On the rule you want to add white-list, click on the WHITELIST link number.

• Enable the checkbox on your white-list category in the list.

• Click on Compile rules to make your changes on the Web filtering