thanks to Alec - Export-General-File System and import works for me except as & diabolo38 points out it doesn’t export .h files
Its pretty standard to make changes to .h files to try different configurations - so very strange they are not part of the project tree.
One of the basic problesm with the import from CubeMX is that the files don’t actually exist in the project directory - they are elsewhere so not possible to snapshot the structure - absolute problem, very painfull.
Thanks to diabolo38 for also pointing out how to get the include files as direct links - that would be so much nicer.
I couldn’t figure out a way of creating a linked directory for the include files - so I suppose it has to happen at project creation time.
Right now I think I have to try and move the files out of the CubeMX structure asap - it works for the demo, but I’ve screwed up the project by trying to move a file from one directory to another, and its messed up the build. Unbelievale and I can’t figure out the virtual project structure. So it is not a safe repeatable reliable environment for software production. I define production software as something that I can stand behind to be sold with an STM32F processor, AND reliably make functional changes.