About the Sketch Window
Use the sketch window to edit the dimensions and angle of a predefined or user-defined sketch for a flat or flange wall. Any changes are dynamically updated in the graphics window.
You can access the sketch window from both the Flat and Flange tabs. Click Shape. The Shape tab opens, displaying the sketch window.
For flange walls, the option Add bends on sharp edges is available. Use it to round any sharp edges on a flange wall.