Good luck. Sash windows would be a welcome addition and useful in many regions where they are common. Looking forward to seeing the result.

ok

PS: When I get the time, I really want to update a guide with separate sections on SVG cutouts, light-sources, hinges, softening/shrinking models, planIcons glass properties, and so on. But as SH3D has evolved with lots of extra possibilities, there are quite a few features worthy of attention. ok