Hi Ben, I can't seem to find any frameworks by the name "OpenGL" in /Libary/Frameworks, nor could I find any via searching. I have looked at Gizmo, but I couldn't find anywhere to begin. With C/C++ there was a wiki on how to start, and example code; i can't seem to find this for Gizmo. I would love to use Gizmo, I have read about it and can see the benefits (I have a basic knowledge of python), but I don't know where to start. I currently don't have any specific projects in mind, but as I continue to develop my various aircraft, I'm sure there will be things that will need a plugin. If someone can give me a few pointers to start in Gizmo, I will be sure to give it a go. Cheers Kieran