struggling with an a.leda b-eye K10

hey there,
i'm trying to get some b-eyes to work in shapes mode.
first thing is: the K10 library in the actual 2.7.0 contains 34 channels although the fixture has 35.
trying to workaround by using the K20 library... but still i'm not accessing all the different shapes...
the console lets me control several values for macro, rate, xfade, offset, time and BG pattern( what is this?), but how am i supposed to use all the shapes via these encoder options?
am i missing something?
did somebody work with the b-eyes in shape-mode on a hog4 and can post me a quick-and-dirty tutorial?
thanx, Dennis