Centrifugal Load in a Rotating Disk

I am changing how the interface for the Centrifugal load will look like. For the axisymmetric case, the user only needs to input the magnitude of the rotational speed.

For the other 2D cases, I will change the interface so that all three centre point coordinates and all three normal directions can be entered, as is the case for the 3D cases. Since the rotation axis can be at least in two useful positions: in the 2D plane and normal to the 2D plane.