Applying filter options to Fortigate log views

Hello,

I'm trying to apply filtering to my Fortigate 200B log view (logs are showing from Forticloud).  How do I utilize the column filters?  I don't see the filter icons on any column.  See attached image.  Hopefully I'm just going about it the wrong way...

Most importantly I'd like a way to filter a specific IP address from the log (or focus on a specific IP address), or a specific application.