Most unreal classes live in their own files, without the “U” prefix. So StaticMesh.cpp and StaticMesh.h. Use visual studio’s navigation tools to help - don’t manually look for files, search by filename, and use “find references” and Ctrl+shift+f find-all to look through the code.
First source build will be slow but subsequent builds should be much faster if all you change is cpp files. If you change important headers you could be in for a longer wait.
I could modify the scale to render with, with an easy line, but where does this get rendered/processed. Is there like some sort of components in the world array or something ?