Represents the area on the Sheet that is available for the user to insert a list of reference drawings. It is defined under a Note named back_sheet_name/REFDRWGS. The Note contains TEXPs that are used to represent reference drawings associated with a Sheet. Each TEXP must be positioned and have attributes set as required. The TEXP is copied from the backing sheet onto the user’s sheet during reference drawing definition.

Represents the area available on the backing sheet where the View is created. It is defined under a Note named back_sheet_name/LIMITS. The Note must contain just one RECT element whose limits correspond to the available free space on the BACK. The LVIS of the NOTE must be set to FALSE in order to inhibit the display of the rectangle on the user’s sheet.

Represents the area on the Sheet that is used to display a Keyplan. It is defined under a Note named back_sheet_name/KEYPLAN. The note must contain one MRKP element to determine the position for the Sheet’s keyplan OLAY. The MRKP must be named:

Represents the area on the Sheet used to display the title block of the backing sheet. It is defined under a Note named back_sheet_name/TITLE. The Note can contain 2D primitives to define the geometry of the Title Block. It should have a Rectangle (the first primitive in the list, or first Rectangle in the list) with NLSTYLE set to OFF, whose area defines the area occupied by the title block, this is used during zoom operations.