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The program now allows the user to revert graphical input operations in the interactive Plan View and data input operations in its associated input forms, and to restore the actions that were undone
User Control
An Undo and a Redo button are added to the control bar above the Plan View window. These items are also placed in the Edit menu. In addition, the keystrokes Ctrl-Z and Ctrl-Y activate the undo and redo commands, respectively.
Affected Views
This feature is active in the Structure, Walls, Openings, and Roofs actions, in both Plan View and its associated data input forms. It is not active in the CAD Import, Site Dialog, Load Generation Loads and Forces
Affected Operations
Operations that create a change to the physical structure of the building are affected, such as moving or resizing blocks, walls, openings and roof panels, or changing the material composition of walls.
Merely moving the mouse, selecting a new object, or navigating amongst input controls, and changing building levels or views, are not included. Changing certain input controls that have no immediate effect on the building, like Roof slope - Opposites the same are also not included.
No. of Consecutive Undo's
As many as five consecutive operations can be undone, and redone again.
Interaction with File Save Command
The undo sequence is preserved through File Save commands, so that the user can undo and redo after saving. A document that has an operation undone then redone is still considered a changed document by Windows.