This is part of my Window and Door Tool Maturity request: https://forum.vectorworks.net/index.php?/topic/64381-window-and-door-tool-maturity/   1. We need a sill board The 'stool' object of the sill settings is designed for a 100 year old traditional wooden window that sits flush with the inside face of wall. These days walls are thicker and windows tend to sit somewhere in the middle of the wall. And no matter what external sill is specified we nearly always have a sill boar