Good to understand this stuff, but luckily the exercise turned out to be just that.  When one saves a scene with a Walk Designer setup, the animation already contains all of the motion (walk) and travel (spline following).

In Cinema 4D, the same can be done by adding a spline, adding an 'Align to Spline' tag to the object using the z-axis as reference.  With iPP, you then apply a walk animation pose and set the tracks to repeat.  My plugin doesn't yet have a 'Walk Designer' feature, but you can have any locomotive animation repeat and follow a spline for similar results.

Thanks!

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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