I have studied the KN7000 photograph, and compared it to the my KN6000. I think the following functions belong to the KN7000 buttons (with a little bit of guessing):

LEFT TOP ROW:
-4 Sliders for Main volume, APC/Sequencer volume, Mic volume and Audio file volume
-4 grey buttons for the Sound Arranger and Auto play chord functions
-Yellow button: something to do with loading from the SD card ???
-16 buttons which represent the Rhythm groups

LEFT BOTTOM ROW:
-The Demo song button, and the performance pads section
-Music Style arranger, one touch play, split point and Variation & MSA
-Fade in/out, Tap tempo, synchro&break, Fill in, Intro&ending and start/stop

CENTRE:
-The Display: same buttons as KN6000/6500
(although, it appears that there are 2 more buttons on the right side of the "other parts/tr" and "help" button)

RIGHT TOP ROW:
-18 buttons that represent the Sound Groups
-8 grey buttons: I really don't know what the function of these buttons is ??? Something to do with playing the audio files or SD card functions ?
-4 buttons: play, easy rec, program menus and disk load
-Yellow button: loading from the SD card ??

RIGHT BOTTOM ROW:
-Tempo/program wheel
-Transpose, R1/R2 octave
-Conductor with part select, and above it solo and techni-chord buttons
-Round shaped panel memory section, with above it 2 buttons for bank select
-3 buttons placed in a circle for selecting: Music stylist, favorites and customize

Maybe someone can complete this description with the missing information...

kind regards, Bart