Use the Preview and Positioning Panel of Door/Window Settings, or the Info Box, to set the height and width of a door/window.
Every time you change a window/door height, the change will affect either the sill or the header Depending on how you choose to anchor the opening, sill or header height can be measured from the wall base, the wall top, or a given story height.
In the Preview and Positioning panel, the pop-up lets you choose any one of these as a point of reference for the sill/header value.
•Sill to Wall Base
•Sill to Wall Top
•Sill to (current) Story: the height of the Sill will be measured relative to the level of the Current Story (the last story open on the Floor Plan). To choose a different Story, click the Select Story option and choose a story from the dialog box.
•Header to Wall Base
•Header to Wall Top
•Header to Story: same method as the Sill to Current Story options, but you must provide the Header height. To choose a different Story, click the Relink Anchor Story option and choose a story from the dialog box
•Relink Anchor Story: If you choose this option (select the Story name from the list in the appearing dialog box), the chosen story’s height will serve as the Anchor from which the Window/Door should be measured. This option may be used, for example, when a Glass Curtain Wall is created and all individual panes must have their heights set to a common height.