Hi @BrianM,
Not sorting the children was not intentional - a bug that I fixed, so now the script should sort all layers as the Layers panel behavior: SortLayers.rvb (1.6 KB)
Sorting within selected layer and its children could be most likely accomplished by modifying that script. See if you can figure that out or would need help with that - I can take a stab at it, too.
hth,
–jarek