Attached above is the text of a pp2 that contains a camera. The camera has 3 extra dials;

Fast dollyZ
Fast dollyY
Fast dollyX

These should help you move around the scene faster. It's a P6 camera, but will probably work in later or earlier versions. I haven't had time to test it properly, so there may be bugs. For instance I don't know if it will work OK with depth of filed, or motion blur. Use at your own risk.

Because of a bug in P6 (and perhaps later versions), the new camera will not show up in the Camera Controls, or in the Display > Camera View menu. To select the view  from the new "FastDolly" camera, you will need to right click in the document window, and select the view from there.