I'm a big fan of using the Project Tool, because it so powerful for 3D…
podcast 202 – 3D Polygon Tool
3D Polygon Tool – Vectorworks has some really cool 3D tools and it’s tempting to always look at these instead of some of the basic 3D tools that Vectorworks has. The 3D polygon tool can be used to draw a polygon between 3D objects. You don’t need to use automatic working planes, you don’t need to set working planes, you just need to draw the 3D object and snap to the 3D geometry you already have.