LibreOffice 4.0's menu bar is not integrated with Unity
Solution 1:
Menubar extension is working for me, but not the lo-menubar*.deb - the guts of this package. I don't know how long it would be working. This is very ugly hack and use it at your own risk. Just check it out: http://ubuntuforums.org/showthread.php?p=12515508#post12515508
I'm using ubuntu 12.04, libreoffice 4.0.0 and menubar 0.1.1. I don't know if this is working in 12.10, but really want to know.
Solution 2:
How did you install LibreOffice 4.0? Did you use the .deb file? I have heard this does not provide the Ubuntu-centric features, like the menu bar integration. I installed by adding the official LibreOffice ppa and running a dist-upgrade; this seemed to work great! Menu bar is integrated and it replaced the old LibreOffice; even my custom shortcuts on the launcher launched the new vesion.
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get dist-upgrade
If you don't have LibreOffice installed for whatever reason, then instead of the last line, type this.
sudo apt-get install libreoffice