Thanks for the replies.

That was the first thing I tried but after renaming the internal bone name when I try to go back to the Pose room I get the message there are polygons not grouped.  On rokkets advice I checked the Group Editor and I have the bone names as the group names which probably explains why it didn't work.  When I rigged the models I created the bones and then grouped them using the default bone names that Poser assigned.  So maybe my question should be how do I change the group name so I can in turn then change the bone name?

I'm using Poser 10.

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