Here is an alternate method to using a python script, it has the advantage that it should work in any version of Poser.

Attached above is a text file, save it to a sub-folder of the character folder and rename it "MinFig7.cr2". Load MinFig7 into Poser (it will be invisible), parent all the props that you want to act as a group to the 'Body' acter of MinFig7.

Just about anything you do to the MinFig7 will also happen to the props parented to it. Select its 'Body' actor, then from the menu bar do; Object > Properties > Visible, and its children are hidden/unhidden. Scale it and its children ara scaled. Rotate it and its children rotate. Lock it and its children are locked. Save it to a Figures pallet and its children are saved with it. Delete it from the docoment and its children are deleted.

You may also want to lock the individual props, so that they can't be moved individually, but only as a group when you move the Body.

MinFig7 is basicly just a cr2 file without any geometry.