A request or hold can be edited by selecting the item in the Borrower Request List window (see View Requests and Holds section) and then clicking on Edit. Multiple items can be selected. A request can also be deleted by clicking on Delete.

For example, suppose that a borrower is going on vacation. They want to stay in the request queue but don’t need the item until after they return. You can suspend the request until their return date. If the item becomes available in the meantime then other borrowers’ requests will be fulfilled.
When an item is already being held, the request cannot be suspended, however the Hold Expire date can be changed:

You should not change the Hold Expire date regularly - this should only be used during exceptional circumstances, and should not become a habit.