Custom Views for the CRJ 550, 700, 900 & 1000. These are as follows:

Alt+ corresponding number

1 default cockpit view
2 left back of plane (wing and engine)
3 right back of plane (wing and engine)
4 left wing behind (over wing in 550/700)
5 right wing behind (over wing in 550/700)
6 left wing front
7 right wing front
8 left front of plane
9 right front of plane
10 top of tail

Place folders in following locations:

C:\Users\ ***USERNAME*** \AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\SimObjects\Airplanes