Close trigger automatically after a couple of hours or some time

[gastonace1]

Hello everyone,
I have a trigger that I search a value in a log, it generates the alert and I put it to close manually, because I need to see it.
But after some time, I want it to close automatically, say 2 hours after it has been generated.
Can it be done?
Every idea its welcome!

[gastonace1]

This is my trigger. I suppose a recovery expression can be add but I can't figure out how to do it.

Any suggestions?

[Rudlafik]

Only In Expression!

find(/ANY_ITEM1)=1 and nodata(ANY_ITEM1,15m)=0