How do you lock the Fn-key on keyboard?

Mechanical Keyboard Recommendations with special caps lock snowflake.

• I have looked through the older questions http://ask.metafilter.com/264885/I-need-help-choosing-a-mechanical-keyboard, and http://ask.metafilter.com/199438/Whats-the-best-click-for-my-clack and there are plenty of great potentials there, but I have a question about key remapping in hardware/firmware to which I cannot find a clear answer. I'm full time in programming/ops using an Apple bluetooth keyboard for my day to day work. The first flaw in this keyboard is that the bottom left key is not Control, but "fn" and I have a piece of third-party software that fixes that. All of the potential mechanical keyboard purchases solve that issue, so no problem there. The biggest issue for me is remapping Caps Lock to Esc. This is entirely too complicated in OS X (xmodmap being one thing I miss from my desktop linux days). Plenty of the mechanical/hacker keyboards seem to have built in switches to send Control or Alt for Caps Lock, and some mention "fully customizable" keys, but I can't find a clear answer to how I can have a nice keyboard that doesn't require me to install multiple pieces of software to remap the keys. The newest Das Keyboard models appear to be exactly what I want, but I want to know before I drop that kind of cash if I can remap Caps Lock to Esc via the hardware. Any recommendations for a mechanical keyboard that really has "full" customization, or at least will let me send Esc from Caps Lock?

• Answer:

  Full customization is possible with the https://www.massdrop.com/buy/ergodox [see my current configuration https://www.massdrop.com/ext/ergodox/?referer=M8HD4B&hash=00eb069b08290fe02dba34d3616b8c3a], though the price is certainly above and beyond most mechanical keyboards, besides the fact that you have to put it together yourself and the fact that it has a non-standard layout (grid, as opposed to staggered). If you're willing to deal with writing code for it, I believe you can also create one-key macros which trigger multiple keypresses, but that seems beyond the scope of your question. As a current owner and operator of an ErgoDox, I'm very happy with mine. I'm not necessarily any faster than on my more standard mechanical keyboard that's at home, but I find that my wrists are more comfortable over a given period of time. Being able to remap my keys almost at will is very nice.