The Second Life inventory library only contains 'legacy' environment settings. As a parcel owner, I have no way to change my parcel's day cycle to the "new default" that was added as part of the PBR release - only region owners can do that.
Could the new environments, such as the "PBR Mid day" and the new PBR default day cycle be added as full permission resources in the SL library? That would allow us to more easily take the "new default" and make minor adjustments instead of starting from scratch.