Modifying CameraRotate.js

I would like to modify the CameraRotate.js from the Smooth Rotation tutorial to achieve two things:

1. The initial camera view should not be re-calculated but taken over from the default view.
2. The model should start coasting at a certain speed when the 3D annotation is enabled.

Is there anybody out there willing and able to show me how to do it?

Thanks in advance,

Beat

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OK, I just found the answer to the second point myself:

Under Private Variables, change

var yawDelta = 0.0; to 0.5

and

var yawCoast = true; to true

Now I just need to find out about point 1