Patriiick wrote
Is it even possible?
Only if you enable PHP embedding, which I would not advise (security risk).
There are two possible solutions:
1. Keep the original toolbox and put all other links into the navigation box.
2. Customize the default toolbox as described here:
http://www.dokuwiki.org/template:monobook#customizing_the_default_toolbox (might be difficult if you're not skilled in PHP)
BTW, for the same reason your backlinks ("Pages liƩes") in your navigation box won't work as well.