Note: The current PropLight script does most of this, and the only omission is that it doesn't save child props of the selected prop.

I loaded the stock Treehouse 2 into a default scene. Loading the TreeHsIntLt prop correctly parents to the treehouse, and brings the parented point light with it, but the TreeHsIntEmtr (a child of the saved prop TreeHsIntLt) was omitted.

Similarly, after deleting the default construct, I loaded the PropLight-saved construct, and it brought all three area lights in with it, properly parented to the construct. However, it omitted the haze ring prop, a child of the PropLight-saved construct.

I can make a preload CR2 for the Treehouse, with all the extras. For piecing together a scene, I can also make smart props of the omitted items, so that they can be added to the PropLight-saved PP2s. But it would be more end-user friendly to be able to easily save nested assemblies of props with attached lights.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5