Our Keystone 2660RL with the slide in was impossible to open the bathroom door enough to reach in let alone enter. The door to the bathroom opened from the left outward and immediately hit the dinette seat edge. As it was raining today at the campground I decided to investigate and see if it was possible to reverse the direction of opening to rideside open out, so that the door edge would swing into the void between to dinette benches.
I found the door frame edges are held in place by the hinge screws on the one side, and the door strike and two screws top and bottom on the other side. A simple removal of the screws allowed for me to flip the door clockwise and placing the frames from one side to the other by rotating them clockwise as well. The whole process took 20 minutes and everything lined up perfectly. The only notable difference is the space at the bottom of the door is slightly greater than before, which is perfect to allow the door to swing over the slideout floor when it is retracted. All and all an easy mod for a rainy day and a blessing on those cold dark traveling nights when you got to go and you can't get to the can!