Many thanks, this is brilliant - just what the doctor ordered!
Half the time I need to look for flights originating form LPA which is relatively easy once you know which days have the ideal connection, but when looking for flights starting from WAW I'm basically only interested in the WAW-HEL connection that aligns perfectly with the onwards journey to SIN.
I take it inputting something like "MAXCONNECT 3:00" in the Extension Codes field is the easiest way to filter the results?