This is as close as you´ll get.
http://talk.maemo.org/showthread.php?p=412906

Twoboxen did more elaborate fn use than I did. Butt the fn+ functions I did were relatively simple and easy to do. Everything works great. I´ve been tweaking this a little all day to make typing faster.

You need to know what to call those letters in the text file. Ö is odiaeresis (small) and Odiaeresis (capital) ä is adiaeresis (small) and Adiaeresis (capital) in the same way e is ediaeresis in small and Ediaeresis in capt. the SS symbol I don´t remember what is called. Google the other ones and you´ll find a page telling you what you should call it.

You need to figure out how to manipulate the arrows. You can´t really damage much by copying for example a keyboard you don´t use and trying out changes on it. I tried 2-3 times before I got everything to work. The device does not need to be restarted to see the changes happen. I just switched to from and to the keyboard setting I was editing and then clicked "save".

The third column of the character function is the fn+key function. So you just need to add these letters there.

Look at what I did with the left and the up keys. You should be able to do the same with the right and down keys. Or look at where the arrow keys are defined by themselves at the bottom of this file.

To do this you need to install xterm and:
1. Gain root by writing "sudo gainroot" into xterm after running it.


2. Then you write "cd /usr/share/X11/xkb/symbols/nokia_vndr/" and push enter.

I also suggest that you download vim through the application manager.

3. Then you enter "vi rx-51" or "vim rx-51", and push enter, to enter the basic text editor. (vi is for vi editor which is built in, and vim is for vim which will need to be downloaded if you wish to use vim)

Then follow the vim command list to try editing the file. It is pretty basic. Just don´t save it unless you´re happy with what you did.

4. Once you are done, click the x in the right upper corner of xterm and shut it down. Then go to settings and change to the keyboard you edited and see if everything works as you planned. If not repeat steps 1-4.

List of commands for vim can be found at:
www.tuxfiles.org/linuxhelp/vimcheat.html

vi is already installed and uses basically the same commands as vim.

I was a newbie at this until this morning. It wasn´t hard and no damage was done. Just be careful.