Organizing Kmenu with the KDE Menu Editor
One of the pleasant problems with Linux Distros is the huge number of applications available. For Ubuntu Ultimate Edition (and others) there can be so many applications in a Kmenu section that it covers the entire desktop like this:
So, how to fix this? You want to make the Kmenu more organized using submenus. Just highlight an item in the section of Kmenu you want to change and right click. A menu will appear, just highlight the "Edit Item" option and left click. This will invoke the KDE Menu Editor:
Now use the Menu Editor to add a new submenu.