I obtained the distance travelled by setting up a one second walk along a straight path in Poser, imported this into Vue and measured the length of the path against a Vue cube. So far I have tried Don and Judy, both work OK with a value of 45, one of the robots (can't recall which) required a value of 30. If anyone else uses this script and comes up with numbers for other figures, let me know and I'll put the values on the page.

Any repetitive action can be used, obviuosly not with this script, import your figure (digging or whatever) make it a repeat animation (animation toolbox) and save as a VOB before adding to the ecosystem. If your figures are on a flat surface then any poser animation can be used, including those with walk paths, however getting the figures not to walk into one another can be tough!