It might be possible, but there aren't any "connecting" 2bdrm units.
As for how to request, You'll need to call up the resort about 2 weeks in advance and make the request. Keep in mind, this is truly only a REQUEST, and there is no guarantee it will be granted. If you give them the reservation information though and request the same tower, same floor, or to just generally "Be as close as possible", you may have better luck in having the request met.
You may also want to repeat the request when you are checking in.