In the list of tasks attached to a request, we can quickly select some and click the Close button when they're completed. We often have some tasks left that are inapplicable, so we mark them as canceled instead. To do that, we have to open each one, change their status to Canceled, then return to the list, which takes 4 clicks and two page changes per task.

There's a Delete button, but we don't want to use that, because removing a task implies that the technician wasn't asked to consider whether it was applicable.