These filters allow you to select stocks based on the number of puts and calls purchased today.  Set the minimum put/call ratio to 3 to see only stocks with at least three times as many puts as calls.  Set the maximum put/call ratio to 0.5 to see only stocks with at least twice as many calls as puts.

You can also use these filters to find optionable stocks.  If you only trade options, set the minimum put/call ratio to 0.  This will show you all stocks which have had any options activity today.  If you want to see stocks with no options or illiquid options, leave both of these filters blank.