First off, read this note about wiring off-board arrays with the Peggy 2: http://www.evilmadscientist.com/2012/mailbag-hacking-peggy/
Second, it’s still not clear to me in what context you want to remap the wires. The display is addressable– for whatever context you want send the data in, it’s also possible to remap the data before you send it. That is to say, where does that “A1” come from? D801 is just row 8, column 1. You can build a lookup table to do a mapping like that in any programming environment.
