Reset Purchased menu, in addition to Clear Purchased.

I purchase only limited list of items in my secondary store. Full list kind of too big for it. So I'd like to select items there and never delete them. Just mark as purchased when I'm done. Then next time I go to this secondary store I could review previously purchased items and un-purchase them in the list. Sometimes I will need to do that for all of such items.

Can you add a menu item to the list next to 'Clear Purchased' something like 'Reset Purchased', so I can go shopping again with the same list of items.