Originally Posted by superbondbond

Just as q335r49 suggested, edit /usr/share/X11/xkb/symbols/nokia_vndr/rx-44

scroll down to find this line

Code:

key <SPCE>   (   [   space,   space,   space,   space   ]   );

and change it to this:

Code:

key <SPCE>   (   [   space,   space,   Tab,   Tab   ]   );

now when you hit Fn + space you'll get a tab. Very handy.

This is a pretty common hack, you can find out more by googling that file.