Hello John, > Can someone explain to me the purpose of "sub filters"?
What you can do with sub-filters is actually up to your imagination and needs. What you must have in mind is that sub-filters are not checked (executed) if the condition(s) in the parent filter are not met first. As a simple example think of a number of filters that have one condition in common, A in the example below: Filter 1: If A and B do... Filter 2: If A and C do... ... ... Filter N: If A and N do... I would set up this as follows: Filter 1: If A (an maybe not even take any action) Sub-Filter 1: If B do... Sub-Filter 2: If C do... ... ... Sub-Filter N: If N do... This way, if condition A is not met in Filter 1, none of the sub-filters will be "executed" to check for the other conditions. Why do so? I some times use this set up with sub-filter just for clarity of my filter structure. -- Best regards, Miguel A. Urech (El Escorial - Spain) Using The Bat! v3.80.03 ________________________________________________ Current version is 3.71.03 | 'Using TBUDL' information: http://www.silverstones.com/thebat/TBUDLInfo.html