Analogue-sequencer

Hi Colin,

I'd like to use the 4U Rack Mount Panel, and I have a question. The M4
Holes (three on top, and three on bottom) are for mounting a whatsoever
case. Or are they used for mounting any of the PCBS? And why is the middle
M4 Hole on the bottom not in a horizontal line with the left and right
hole, like the holes on top?
And I'm thinking about putting a name on it, like "Colin Fraser's P3", or
something like that, what would you prefer? 

Best regards,
Stoffel