Simple concept: add an item to the game (likely available through the DDO Store) that allows you to reset the slayers, rares and explorers in and explorer area.
Double click the item to open a trade-in interface. It would list all of the available explorer areas. Select one, click "Trade" and get an item for that specific explorer area. Double click that item to open a dialog to confirm to reset the S/R/E for the selected area.