Automatic transmission, oil change without rinsing

Hello I have before my automatic gear oil to change however without rinsing. I would replenish the gear oil twice. In other words, run once replenishing gears by switching off and then replenishing again. Would that possibly already be sufficient? I don’t know the total amount of filling comes out here in this action. However, I thought by filling up through the 2nd it would still be better.