Hi list Using xmodmap to redefine my keyboard mappings was causing Openbox to hang for about a minute, so I read up on writing my own layouts using xkb[1]. By and large I've achived the desired results (in much fewer lines too!) but there's still a few things that don't quite work. 1. I think I've mapped ALT+CAPS_LOCK to act as the third level switch, but this works sporadically at best. I want to add mathematical symbols to the keypad, and xev detects most of them, but I can't type them anywhere except in Vim. There's a dump of the key mapping xkbcomp created at [2]. 2. Is is possible to have complex variable mappings similar to as described here[3] in X.org? That guide is Max OS X specific, but it's definitely quite nifty. Robbie [1] http://madduck.net/docs/extending-xkb/ [2] https://gist.github.com/3880640 [3] http://stevelosh.com/blog/2012/10/a-modern-space-cadet/