What exactly are you trying to filter for and what problems are you having? There aren't enough details in your post/question to be able to know how to reply. Here is our
Report Filter Editor (Quick Start Guide) FAQ which has some basic instructions and a few videos linked at the top with more information about filtering basics.
If you continue to have problems:
Please create a support ticket via the
'Contact Support' link with a link to this thread and your forum username. Please reproduce the problem and attach
a set of log files and a screenshot and detailed description of the issue in the support ticket you created.