Undo – Bricsys Support and Help Center

Undoes one or more commands; some commands cannot be undone.

Accessing the Command

command bar: undo

: Undo

Prompts you in the command bar:

Undo: Number of steps to undo or [Mark/Back to mark/BEgin set/End set/Control/Auto]: (Enter the number of commands to undo, or enter an option)

BricsCAD reports the commands being undone. For example, enter the Customize and then the Units commands, followed by entering Undo 2:

Undo: (UNITS)
Undo: (CUSTOMIZE)

Option	Description
Number of steps to undo	Specifies the number of commands to undo; snter a number. Commands are undone sequentially; you cannot skip over commands. Some commands cannot be undone, such as Save, Open, and Plot.
Mark	Sets a marker. The Back to mark option undoes all commands to the marker.
Back to mark	Undoes all commands back to when the marker was set.
BEgin set	Sets the start to a group that groups the following commands. The Undo command treats the commands in the set as a single undo.
End set	Ends the group.
Control	Specifies options; prompts you: Set Undo control: None/One/<All> - (enter an option.) None - turns off the undo mechanism. This is useful when disk space is running low, because the undo mechanism uses disk space. One - limits this command to a single undo. This option turns the Undo command into the U command. All - turns on the undo mechanism
Auto	Considers all commands executed by a macro as a single undo.

U - undoes the last command.

Redo - redoes the last undone command.

Oops - unerases the last erased object, including newly created blocks.

Zoom - utilizes the Previous option to show the previous view.