Choose Inspect tab→Properties list→Physical Properties Manager.
On the Physical Properties Manager dialog box, define the physical properties for the parts in the assembly.
On the Physical Properties Manager dialog box, click Update All to save the changes you made.
Tip:
You can use the Update All button to save your edits without dismissing the Physical Properties Manager dialog box.
You can double-click near a column divider to do a best fit on the grid. Any changes you make to the columns are stored for future sessions.
You can set user-defined physical properties on the Physical Properties dialog box.
You can use the Physical Properties command on the Inspect tab to specify whether symbols are displayed for the center of mass, center of volume, or principal axis for the assembly.
You can set Update on Save File on the Physical Properties dialog box.