Steps to editing a .filter file manually.
In the Profile Manager, click Filters, then locate the file that you want to edit.
If the file is located on the server, right-click the check mark in the appropriate column next to the name of the filter and click Make Local.
Right-click the check mark for the filter in the User column and click Open > in Notepad. The .filter file opens.
Edit the file as necessary. For the syntax to use when defining filters, see Syntax for Filter Expressions.