I always had problems with for to long and complex submenus and submenus of submenus. Already the Filet and the Boolen tools are far to complex and I think that there is a way to subdevide this submenus by adding new tools to the main toolbar. But what I discovered behind the Mesh for surface tool is completly crazy. Hopefully you guys are still working on this and come up with a smarter solution. It is also interesting that for example the transform tool menu is part of these submenu because it is already in the main toolbar.