DizerGK

I had bought my Casio WK-6600 almost 3 years ago since my Yamaha keyboard died. However, I still have a lot of my Yamaha style which I want to use it in my Casio-WK6600. How can I convert those rhythm style to be able to use in my current Casio keyboard? I have been research but I did not get much information about it. Are there any solution for this problem? since I cannot create my own rhythm in Casio-WK6600. Thanks!