Trey Racer

Hello everyone. I am having a little bit of trouble. I was wondering if someone could tell me how to add the "Change Sprite" option when registering a character, because I am using a custom version of Eclipse Origins, which lacks it. Everything else in the menu is the same, except for this. Also, I was wondering which files do I need to edit to change the walk and run speed, and which line is it that I need to edit? I do have Visual Basic 6, so all I need is the information I requested above. Thank you.