close tickets not updated for last five days -generic agent

[kenmurimi]

hi all?

i would wish tickets not updated for last five days be closed. i am thinking of generic agent but don't know how to set the update time at the generic agent. the only parameters am getting are TicketCreateTimeOlderMinutes, TicketPendingTimeOlderMinutes and TicketCloseTimeOlderMinutes. am looking for something like ticketupdatetimeolderminutes.

is there anything like that or anyway i can achieve this?

any help greatly appreciated
thanks in advance