To create a simple opening without placing a library part type Door or Window, click the Empty Opening button at the bottom of the Library Part Settings dialog box (or from the Info Box.)
Place the opening in the wall, as you would a Window or Door. Adjust the size and other parameters of the selected opening in the Preview and Positioning Panel of its Settings dialog box.
For empty openings of varying shapes, with extensive parameters, choose a window from the ARCHICAD library’s Empty Openings folder.
