The models are stored (at least for Win 10) in
You can restore ANY model (be aware of the implications) by
1. Click Pointing Model Tab
2. Click Model in left hand section
3. Click File in upper left (the above folder will open) and list all model (*.pnt) files
4. Select model.
I believe that you can name a model in the folder whatever you want as long as the extension is .pnt