To use the cameras once installed they are bound to: NUM9, NUM8, NUM7, etc...

Custom camera 0 - close up to Captain's EFB
Custom camera 1 - rear left wing view 
Custom camera 2 - pedestal view
Custom camera 3 - rear right wing view
Custom camera 4 - front left wing view
Custom camera 5 - main panel view
Custom camera 6 - front right wing view
Custom camera 7 - straight view above instrument panel
Custom camera 8 - overhead panel
Custom camera 9 - copilot section of cabin

 
How to install:
Camera views are not installed via the Community folder, so if you place them in there nothing will happen.
Instead they are installed in the SimObjectsAirplanes folder in appdata.

The Airplanes folder is automatically generated if you create your first custom camera, if it is there make sure to backup the folder, so you can restore your cameras, if you don't like mine.
Otherwise just UNZIP the downloaded folder and paste the Airplanes folder inside SimObjects.
I included a picture how it should look!

For the Microsoft Store version:

CFM VARIANT:

C:\Users\your_user_name\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\SimObjects\Airplanes\FNX_320_CFM/
cameras.cfg

IAE VARIANT: 

C:\Users\your_user_name\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\SimObjects\Airplanes\FNX_320_IAE/
cameras.cfg

For the Steam version:

CFM VARIANT:

C:/Users/your_user_name/AppData/Roaming/Microsoft Flight Simulator/SimObjects/Airplanes/FNX_320_CFM/Cameras.cfg

IAE VARIANT: 

C:/Users/your_user_name/AppData/Roaming/Microsoft Flight Simulator/SimObjects/Airplanes/FNX_320_IAE/Cameras.cfg

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