Parenting to a common atom is brilliant. SubScenes confuse me, and I haven't quite figured out how to include what I want in the subscene. I was getting a situation where I thought I was moving the figures/persons - but when I followed the Macgruber tutorial and added a button to load the subscene - the figures that were already loaded remained and the subscene loaded two more copies of them, causing physics explosions. This seems to have created another problem for me - where I tried hiding one of the figures. In the Person Control & Physics 1 tab, I turned that figure "off". Now, when I load the scene - if I hit <U>, <E>dit <N>ext only Person #2 is selectable. I also can't click on any of the control points of Person 1. I have to click the Select Arrow, enable "Show Hidden", scroll down to Person, select Control - and then I access Person that way.
I've looked all over for a way to "unhide" Person #1 - but I can't seem to find it. Selecting "On" or unselecting it in Person Control & Physics tab doesn't change this.