Yes if you buy one reslae at OKW and later add another resale you can combine the points. The problem may lay in the use years if they are different, as you may not have points on one contract but the other contract just got your years points. It could get trickey keeping track of the two different points amounts and banking/borrowing and the like.
you can use the points from two resorts for one "vacation", you would have to book the home resort part 11 months out and then at the 7 month mark call again and try to get reservations at the same place. to ensure a place to stay, you can at the 11 month window book the one part at your home resort for each set of points, and then at the seven month point call again and check availability and if they have it cancel the one ressie and use the point for the ressie and link the two ressies at the one resort.
re-reading that
I got confused a little (and I wrote it) so let me try to give you a simple example:
let say you have points at OKW and BWV (you buy two resales) at the 11month mark from your planned trip, you call and make a reservation at OKW for (let's say) 5 out of the 10 nights you want using the OKW points you have AND you make a ressie at BWV for the other 5 nights using the BWV points. So now you got the whole vacation covered (you may have to move, right now)
Now you are 7 months from your stay, you call and they have the 5 nights available at OKW, so you cancel the BWV ressie and make the OKW using the NON HOME points from BWV.
------------------------
Hope that makes sense
Mike