I doubt if you can do my trick with the tray table in that situation. You need a lot more space. Pick your airline and air craft very carefully.
Thank you for your kind words. My leg is much stronger and much more useful that had been expected at my age, but it still isn't what it used to be. I'm not complaining.
Still, when I get tired, I really am finished. Over! Fatigue sets in and I am done for the day.