I don't want to impose my view on what the nav:side should be.
I changed it because I wanted to show you "live".
For the records:
Feel free to revert to previous version if you do not agree.
I think that is great!
Now i would let it in such a manner.
What I open now is the structure discussion and therefore indirect the menu on the left side.
Do you mean structure content, the handbook content ?
If yes, let's switch to the http://handbook.wikidot.com/forum/c-12778/chief-editor section !