This may not be a feature request as I just might not know how to do it.
I'd like to filter my searches (upper right Search field) to just a custom field. Currently the magnifying glass menu allows "All Fields", "Columns Shown" plus a list of fields that don't include my custom fields ("In Amazon Queue" [aka Custom 2], "In Netflix Queue" [aka Custom 1], both of which are columns shown on the display). FYI, the custom fields do get searched when "Columns Shown" is selected.
Is there a way to do this? If not … Feature Request.
Now that I think about it, it wouldn't be bad if you could check more than one item in the filter list (e.g., both "Title" and "Genre"). Now that is a Feature Request.