I have a grocery list with several hundred items on it. At any one time, almost all of these are marked completed, but I want to retain them so I can quickly search, find them, and mark them uncompleted (add them back to my active grocery list).

I was surprised to discover that when the number of completed items is > 100, they are all archived. And that I can't move archived items back to completed (unarchived).

How do I maintain my large grocery list without constantly losing item to the archive?