Hi @Anonymous
I see that you are visiting as a new member to the AutoCAD Mechanical forum. Welcome to the Autodesk Community!
I am checking back to see if the information provided by @inchul.lee helped resolve the issue or answered your question. Please post an update letting the community know.
Additionally, the command DWGUnits lets you configure advanced unit settings. This is a command line based dialog.
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All the best,
Cheryl Buck
Technical Support Specialist

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