I don't even have to think about the loader control any more. But when I started, I needed something to remind me how it worked:
Up and down---think of the control stick as a lever, with the fulcrum in the center, your hand on the near end and the bucket on the far end. Push down to raise the bucket. Lift to lower.
Bucket---pull toward you to hold the contents---push away from you to get rid of the contents.
Bruce