How can you reverse a sliding glass door?
With andersen the task of swapping sides is possible with a little work. What has to happen is all the holes for the handle, lock and latch has to be drilled into the opposite side. The most intricate will be the channel that houses the latch. I cut that by using a large drill bit and making several holes then taking a dremel tool to finish. Finally you will need to plug the original holes with some kind of silicone or calking. I used white so it blends in.

Then all you have to do is move the stationary door over and cut a new hole for the latch.  ( I did not have to do this step because all I was trying to do is replace a broken opp door with one I found online, that happened to be the wrong side. )