Event Editing, Help A Noob Plz~

Thanks to you both, I was able to get the characters I needed in my intro. I guess the next step is going to be placing them where I need them to be. For example, I need Terra to have more of a presence in this scene, while Wedge is the more quiet and stupefied one. Am I correct in assuming to make this possible, I should swap Wedge's character data with Terra's in the hex editor?