Its easy peasy, But i would reccomend one of Yanfly's scripts to help! Use his region common event plugin and make it run a common event with a move route in it which controls the player and put step forward in it! Then make sure the settings are on repeat and if cannot move disregard, then you are done! I am not at my computer right now so some of my terms arent great but hopefully you sort of get what I mean. If not I can link you to a video tutorial!
Due to a situation in which I thought plugin adaptations had stopped for the QPlugins, I "ghetto" converted these 7 over yesterday. They appear to work perfectly as long as you use old style plugin commands. I am uncertain if I will have a lot of free time in the future to work on this, but if you'd like them, here they are.