When a Thrust reverser is locked out for dispatch, how do you control the aircraft with only one in operation for a two engine aircraft.
As ususal I may be missing the point behind the question, but here's an answer that may or may not apply.
First off to me there's not much difference whether you have two engines or four engines if its an outboard engine that's locked out. So I tend to lump my answers broadly.
Then most pilots probably wouldn't use the working reverser on the other side since the aircraft doesn't normally need reverse to stop except in rare circumstances (coming in long and hot on a slippery runway etc.)
For those that do use an asymetrical reverse the aircraft can be easily controled via rudder at the higher speeds where the reverser is effective. At lower speeds most pilots would have already decreased the reverse thrust and the nose wheel handles the asymetry that's left.
Yes there are pinch points where you absolutetly have to stop in a short distance and your hands will be full of asymetrical aircraft, but that's often because you've already screwed up a good landing
So to me the short answer to the question is to simply brief the issues (using or not using) before hand and adjust accordingly.