Read about it here.
- Hank
Assigning Custom Key Functions with CELX
I moved Hank's wiki entry to a new location as part of the new Q&A section in the Celx part of the Celestia wikibook - it's now at:
http://en.wikibooks.org/wiki/Celestia:C ... _with_CELX
http://en.wikibooks.org/wiki/Celestia:C ... _with_CELX
From my expierience with this, some modified keys work (such as control a-z). Other meta keys, at least on windows, are not useable at all (alt modifiers, most extended key sequences). Some control sequences are problematic, especially if they are already in use by Celestia. My advice is to download and understand the console script written by Harald Schmidt. It's straighforward and clean, with multiple key processing. I believe it's on Celestia Mother Lode. BTW, control sequences are \001 through \026, except ^h (in Windoze, maps to H). I would avoid using ^c and ^z since those map to break and suspend on unix systems
Cheers

Cheers