No broadcast software ideas for multiboxing

[nodoze]

I think I get your concept of your "abomination keyboard" - I press letter <X> on the top keyboard, and my key-press goes down through the stack and actually triggers <X> on multiple keyboards below. But I think key part you're looking for is isn't vertical alignment of the mechanical switches, but instead that you want a single key press to trigger 5 (or whatever number) of physical switches at one time. If you're already going down the route of 3D printing something, and if you're comfortable with a soldering iron, I'd just put 5 (or whatever number) of circuit boards in a stack - all connected to 1 physical key. 5 sets of keyboard circuity - 5 independent outputs, all connected to a single set of keys. ...

If you do the keyboard this way then indeed I would call it an "abomination keyboard" and that abomination should rightfully be banned by Blizzard as it violates "1 input causing only 1 action in only 1 client".

I had similar thoughts though was thinking of calling it a Frankenstein-Keyboard or a Frakenboard (TM).

The Frakenboard(TM) on the other hand would be configurable at the hardware level, per key, to be able to have that key go to a specific single client. The hardware would be designed such that any key could only able to bridge the gap to 1 and only 1 client at a time.

The most popular model would likely be the "FrankenBoard 5" for 5boxers :-)