With Advanced Filters you could filter your sessions based on the Request Headers or the Response Headers.
For example, knowing that your Host request header should be www.youtube.com then you could apply this filter to visualize only filter that are having this specific host header.
Update: The Advanced Filters are now greatly improved in the latest version of Fiddler Everywhere.
Sunflower5587
Would anyone show me an example of how to use Advanced Filters function to filter a specific url (e.g youtube only).
Your help is appreciated.