Overriding the default Run state to function like a forward hop is literally the exact example of overriding common states Elecbyte gives in the Mugen documentation. See here for the details, it should break down most, if not all, of what you need to know about how to do it, and even gives you a pretty plug-and-play code snippet to use. Just keep in mind that if you use it as written you'll need to change your KFM's animation #100 to the short hop forward.
