If you have a Ketron SD4 sound module and use Cakewalk we have a *.ins that you can download making it much easier to select voices and drumkits. This is similar to the *.ins file that we recently released for the Ketron SD1000. We put together a short video showing how easy it is to access both the banks and individual voices. Although this video was shot using the SD1000 it works the same on the SD4:

Cakewalk support for Ketron SD4 Sound Module

Thanks to Chris for testing it out for us.