Hi Goh! I'm a SketchUcation n00b and I just discovered your toolset. AMAZING!!!
I have one question though, I'm trying create louvers for a curved surface (since my building is curved and I'm putting the louvers on its south-facing wall). Right now I'm playing around with "View Hidden Geometry" and then generating the louvers on a per-surface basis, but it's taking me quite some time and doesn't look very clean. Is there any way to generate the louvers (both horizontal and vertical) from a curved surface?