Poser 11 has grouping objects, which don't render, but are designed to use constraints. My suggestion would be to parent the dancing figure to a grouping object. Apply the figure's BODY translations to the grouping object, which remains on the ground, so will be a stable target platform, rather than moving up and down with the figure's body, as the Posing camera does. Create another grouping object and a revolving camera (don't use the existing scene cameras). Parent the revolving camera to the second grouping object. This camera will always orbit that second grouping obj. Now, create a constraint from the second grouping object to the first one. This will cause the revolving camera's target to smoothly follow the figure's translations, but not bounce up and down.

If you have the figure jumping, you might want to make sure that the Y translations are applied to the hip actor, rather than the BODY/grouping object, so the constrained camera remains stable.

There are some tricky caveats with grouping objects and constraints. If your figure is scaled, or something the grouping object is parented to is scaled, everything parented or constrained to that grouping object will also acquire that scaling, so you sometimes need to compensate for that in the grouping object XYZ scales.

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