OpenIV released the openCamera ASI Plugin for Grand Theft Auto 5. This small plugin does only one small thing, it removes the boundaries of the free camera in Rockstar Editor. After you installed openCamera ASI Plugin for GTA 5 you will be able to move the camera far away as you want from the actual player position without any limitations.
Just install openCamera ASI Plugin through ASI Manager in OpenIV.
You can see a demonstration using openCamera ASI Plugin in the video below: