The New Features 2012 list at Softplan.com, under item "Roof" mentions the ability to include purlins. However, the pic with it that is supposed to show these purlins shows instead what I call lath. I little investigation reveals that there are others who also regard as purlins what I call lath. And others who use the same nomenclature I do. Anyway, it caused me to wonder what are the editables for Softplan 2012's purlin /lath. Can there be more than one set in a roof? Say, one set set to be under-the-rafters support purlin, and the other lath? If anybody knows, much appreciated.