For every Door/Window in the INT library, you can set parameters using the Custom Settings panel, which has a graphical interface. The name of the panel varies depending on the Door/Window type that is selected.
For fast, simple setup of doors and windows, you only need the three main tab pages: Settings and Opening, Wall Opening, Connecting Structures.
To set additional details, go deeper into the tab page hierarchy, or access them with shortcuts from the main pages
For more information on Door/Window attributes, see Override GDL Object Attributes of Doors/Windows.