Comment 7 for bug 1766323

I'm not sure I would call this a duplicate. The other bug doesn't have all the substantive info this one does, and this is a subset of the other bug (if I understand it correctly).

I mentioned specific use cases which were fleshed out in later comments. And I think there was a dev mailing list message about this but I can't find it now.

One thing perhaps not fully captured above would be a way to "log" which of the potential 3D models the user selects so that it will remain the default model to be used on a particular board file when instantiating the 3D viewer (unless the selected model is changed, of course). This would allow a single LED footprint to have many 3D models for various colors, and then per-board the LED model's color can be selected and it will be remembered along with the board file (I image a separate file would be the best option here). Or a single radial cap footprint where various cap heights can be chosen (this may be best for a generic cap symbol's footprint association as specific footprints may be the best choice for a manufacturer-specific capacitor). Or a battery holder with a without batteries installed. One can imagine many possibilities.