So there is a new feature. Currently called "Route Favorites"
When you have your homes saved as Favorites, they show up on the top of the page. You then click on which homes you want to see on the map (there is a # to the right of that) and click Route Favorites. This will then show you where the homes are on the map.
Now technically it isn't a "best route" or driving directions, but the idea is you can eyeball which homes you should see first and the # will show you the address.
If people like this, I can make it better.