How to create web exceptions

Hello,
I primarily use policy-based mode because I find it easier to understand, however, for the sake of more support I am trying to convert policies to Profile based mode and I have a question. How do I get the web filter to have the social media category enabled while blocking social media like tiktok, wechat... In policy-based mode it was enough to make a deny rule on these apps and under it create a rule where I allow social networks, but I have no idea how to do the same in profile-based mode in FortiManager.

Thank you in advance for your advice