what does the column "stop after" on "info page" mean ?

I am sorry for my first letter , I spell wrong word "DURATION >60" , what i mean indeed is "DURATION <60" . this is the correct one : I installed hobbit and find it is excellent! I was confused about the alert confiugre of "hobbit-alerts.cfg" , I configured the DURATION <60 ,I assume it will appear in the "stop after column " on the "info page", but I can't see it. Maybe I am wrong about the "stop after column" ,what does it mean ?