Ok, so, My 7 year old Tennessee Walking Horse knows how to trot. When I first got him, he would rack and trot under saddle, but they were kinda scrambled up and he would switch between trotting and racking. We taught him how to stay in the rack and not switch between, and I have not asked him to trot under saddle since then.
Here's my problem: I'm switching to Saddle seat, and he needs to know how to trot when I ask him. Does anyone have any ideas how teach him to do that?