I'm not quite sure I understand your question. I presume you have the 6-spd automatic and I'm not familiar with that. I believe if you move the shift lever to the left you should go into "auto-stick" mode, that is, you can select the gears manually. If you move the lever to the right, you should be back in full automatic mode. Is that not happening?
Please forgive me, I see you're new here. Welcome! I hope my post is helpful, or that someone else may better understand your problem and they can help. Again, welcome!