The issue is that not all extensions have a menu item from which I could try to extract such from.
Not all even have binaries from which to run, meta-extensions, i.e., compilete, which BTW, I have in my ondemand section.
I agree it would be nice but would require adopting some additional standards for the extensions.
I have introduced the concept and infrastructure because I use it and find it most helpful in providing even faster boot times while still allowing quick and easy access to my less frequently used programs.