Question Extending TF3D?

Has anyone figured out how to extend TF3D, such as adding new custom tabs? I would like to add a Stock tab to TF3D, and it would be great if I could quickly gain some knowledge about the inner workings of TF3D without having to disassemble TF3D components... but I haven't seen any posts with this type of info (although I suck at searching xda).

I have seen things like the Diamond TF3D Config that allow me to hide tabs... but I want to add a brandnew tab.

Thoughts?