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CAD tip CAD tip # 4404:

Question CAD 
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Q - question

Which variable controls the grouping of Zoom operations for Undo?

A - answer To group a series of zoom/pan operations into a single step for the UNDO command you need to set the bit 16 of the UNDOCTL variable.

If this variable is set to the value of at least 17 (default value is 21), the Undo function undoes zoom operations in one step (AutoCAD 2006 and higher).

See also Options/User preferences - Undo/Redo.

100% *  CAD 
10.5.2005    5970x  
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See also:
Tip 10167:Keyboard shortcuts in Autodesk Fusion 360.
Tip 9443:Undocumented: automatic Zoom All for Inventor views
Tip 7503:Autodesk 3ds Max keyboard shortcuts.
Tip 6342:The hidden commands in Autodesk DWG TrueView.
Tip 3769:How to restore layer state without undoing editing changes?

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