Remove one of the tile power headers then move the remaining ones to
interleave with the Eurorack power headers, this simplifies the +/-12V
routing.
Add indicator LEDs for the +/-12V and +5V rails.
Power distribution for 5 shrouded Eurorack power headers and 5 1u tile
power solder points. Layout is left to right, this may not be the most
optimal orientation.