Actually you can save a short motion as a pose in any version of Poser.
(This is pretty much what Poser was meant for in the first place!)

Select your figure; get into the Pose library and hit the plus sign at the bottom.
Poser will ask you to pick a subset of body parts, and ask which frames
to store.

To repeat, simply move forward by the length of the cycle and re-apply the
animated pose.

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