The following is a description of the Frame and Sash page of the Custom Settings panel for a Basic Window, from the INT ARCHICAD Library.
Note: To set options for the sash types and grids, use the Sash Options tab page.
Frame Element Joinery: Choose either Mitered or Butt Joint.
Uniform Frame Width: Check this box if you need a single frame width for the entire window structure. To set a different frame width for any and all sides of the frame, uncheck the box and then click the Set Frame Widths button to go to the Frame Widths tab page.