Share Email Facebook Twitter LinkedIn To Change Bearing Calculation Properties (AutoCAD Mechanical Toolset) At the Command prompt, enter AMOPTIONS. In the Options dialog box, select the AM:Calculation tab. In the Bearing section of the Calculation dialog box, make your necessary entries, and choose OK. Related Concepts About Bearing Calculations (AutoCAD Mechanical Toolset) Related Tasks To Perform a Bearing Calculation (AutoCAD Mechanical Toolset) Related Reference Commands for Bearing Calculations (AutoCAD Mechanical Toolset)