Here is the current state of my menu:
The vertical space between categories (Surge Protection, Grässlin, Sensors, etc) is what we desire because otherwise, this thing was as long as the background page.
BUT, I am now unable to order these categories. I have been told by the developer it is no longer possible to order these categories. I wanted to get input from other users as to whether or not this is true. I can't imagine not being able to order these items, they are falling into place randomly. This layout doesn't even save the maximum amount of vertical space.
Here was the initial work performed on the menu:
I was able to order the categories then, but as you can see there is an enormous amount of white space.
Many thanks for any input.