Dunno, BFWIW we have discovered that readscript has just enough support to allow it to do things that were current when it was originally added to Poser. E.g. it can't handle ERC/FBM stuff that was believed to have been added in the release after readscript was. But it does appear to support legacy figures without figure numbers in their CR2 - needed when Poser first started supporting multi-figure scenes for backward compatitbility (which is the basis for Maveris' FII discovery). IOW, readscript was written to load the P2 casual man at the start of a new scene, and was never again touched after that in terms of keeping it up-to-date with new developments. So did light sets as we know them today get added after readscript?