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

list Xiao Xiangjun
Mon, 20 Jun 2005 17:02:30 +0800
Message-Id: <user-209ad71c8776@xymon.invalid>

	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 ?