What is the workaround for having 7/8, 7/4 5/4, 5/8 styles in yamaha psr e463 especially since the keyboard doesn't have a style creator (it has a groove creator thoough). I required it urgently for an event. I have heard that it has a "style engine" which doesn't support 7/8? I believe that the groove creator can't be used for such a purpose, am i right? Is there any workaround with recording it as a song? Since there is a record function in it. I tried free .STY files (mostly sff1 is unavailable on the internet for free) and the ones which i found doesn't seem to sound properly and have timing issue.