[abenedik]

Panning is very easy to implement with Ab3d.Cameras.FirstPersonCamera.

There are already methods to do this:
MoveLeft and MoveRight methods actually pan the camera left and right.

There are other useful methods:
MoveBackward, MoveForward, MoveUp and MoveDown.

Those methods are used to move the camera around.
To rotate the camera you can simply change the Heading property on the FirstPersonCamera.