Points? Or cash/package?
If you're staying on points, no problem. You just (but you have to reserve it yourself, with Member Services) add the Dining Plan to your SSR stay and to your BWV stay. No ticket purchase required. You "get" whatever/however you reserve.
If, on the other hand, you're paying cash (credit, whatever) for your reservations, you need to book two separate packages - one for the one night at SSR, one for the four nights at BWV - and include a ticket purchase with each package and the Dining Plan with each package. Those are two entirely separate reservations.