I think these are stored in (for MS Store installation)
C:\Users\[username]\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\SimObjects\Airplanes
Any plane with custom views will have a folder and in the folder is a CAMERAS.CFG file.
- dcc
Yo-Yo, I've just always overwritten... I "think" it's stored somewhere in the cloud. Ctl+Alt+# for 1-9 will give you the same view for all. You can then re-setup as you like. Has always worked for me. If the particular a/c you want has a preset view you like, just set that as Ctl+Alt+1.
HTH
C