Проблема является известной уже очень давно, но вот исправлять её никто не торопится с
2012 с года (пост с зелёной галочкой).
Confirmed Known Issuse I'll share with you all.
Thank you for choosing Autodesk Support. Our development team has identified an issue with pan/zoom where the setting to group these into one undo does not always work. I have also located several reports linked to the issue. The ticket number is 1468729 and is linked to this case.
There are several reports of various workarounds allowing the issue to go away. Please see if they help you too.
In AutoCAD's Options User Preference tab, be sure that the box for 'Combine zoom and pan commands' in the Undo/Redo section IS checked.
Run the ZOOM command, perform the Intellizooming with the mouse wheel, then exit the zoom command (press ESC). This will combine all of the undo entries into one ZOOM undo entry. Obviously this isn't as convenient as simply using the mouse wheel to zoom. But it does provide one workaround for the moment.
You can also try toggling on/off the UNDO command and also use the STATUS command to see how much data the UNDO command is “holding”. To do it you have to type UNDO in the command and choose the CONTROL or NONE options displayed in the prompt. The goal here is to limit the amount of data that the UNDO command is "holding" (information saved earlier in the editing session). To discard that data you can use the NONE option within the undo command.
I found other suggestions that your customers could try:
Check the value set to the UNDOCTL system variable:
0 UNDO is turned off
1 UNDO is turned on
2 Only one command can be undone
4 Auto is turned on
8 A group is currently active
16 Zoom and pan operations are grouped as a single action
32 Layer property operations are grouped as a single action
Since this is a known issue I will link it with the case from the development team. This does not mean that the issue is solved or complete, it signifies that Support has now transitioned responsibility of defect to development directly.
