How do i setxkbmap se de caps_toggle?

Hello there.
Everyting was working fine, and then i started to use Duolingo to learn german.
I'm Swedish so I have the se keybord witch offers me the ü by pressing first the button "^~ and then u, and i have the öä and the AltGr+S gives me ß, but thous ü are really anoying me.

The keybord i have is a Qpad MK-50. Layout is a se pc105 with a Fn button to toggle F1 mute, F2 volume up, F3 volume down and F4 play/pause. Link http://www.corporate.qpad.se/modules/news/article.php?storyid=252

I read through the forum and found that I should use setxkbmap, so I do.

If I do a simple one I loose my arrowkeys, page up/down and Fn so on, witch is a bummer:

setxkbmap -option 'grp:caps_toggle' 'se,de'

This next one does not give me the capslock toggle, and I have tried lots of variations, and read documentation and checked every config file. Anyway my Fn button does not control my F1 mute, F2 volume up, F3 volume down and F4 play/pause anymore, how do I get that back?

setxkbmap -keycodes evdev+aliases -types complete -compat complete -symbols pc+se+inet -geometry pc -option 'grp:caps_toggle' 'se,de' -rules xfree86

Thanks on advance for your help.