Hi, Jaynee!
What a great resort!
Oddly enough, Building 85, in the Magnolia section of Disney's Port Orleans Resort-Riverside is exactly where my son and I stayed last fall. What a beautiful, easy walk to everything. Great choice!
I found a very useful map of the exact room numbers, with room categories (color-coded) on the fan site portorleans.org. There is a downloadable pdf of all of the buildings, labeled Magnolia Bend. Click that, and you'll find that the rooms on the third floor of Building 85 come in a few different categories, most of which are considered "Garden View".
Take a look at the pdf, choose a room, then contact Walt Disney World with your request. Give room numbers (plural, you'll increase your chances of getting one of them) so that the Cast Member assisting you at check-in will be able to honor your request if one of those rooms is available at your time of check-in. (Contact them by phone; the number listed on WDW's website for Guests with
questions about WDW hotel reservations is (407) 939-6244.)
Keep in mind, that Disney can in no way guarantee your room choice, as circumstances with other Guests change. However, it's good for Disney to at least know your choice, so that you can be accommodated if at all possible.
Good luck!
Send more questions as you think of them, Jaynee! I love to help!