Many thanks for this.

I wonder if instead of using the term descendants, the term children would be better -- just for consistency.

descendants is only used in a couple of other doc files, and those instances could be changed, too.

Isn't children and descendants two different things though? In my mind children is only the direct children (one level deep) while descendants are n levels deep - children, grandchildren etc. Not a native english speaker though, so might be mistaken.

@GGAlanSmithee Good point.

That was my reasoning, Descendants is more accurate and Object3D already uses that term.

Thanks!