I need a workflow that will change a field for multiple items in a list based on the item status. So if 45 items have a status of Resolved, I want to change that status to Closed with a manually started workflow. I cannot start it automatically on item change, as the status of Resolved can apply for an indeterminate amount of time.
I don't want to have to start the workflow from each list item. Can anyone suggest options for achieving this? I have access to SharePoint Designer.