To Make a Mass Element Additive

Use this procedure to change the operation of a mass element. All objects are additive when they are created. When two mass elements are grouped together, they form one mass containing both objects.

1. Select the mass group that contains the mass element you want to change.
2. Select the Edit In Place grip.

   Alternatively, you can click Mass Group tabModify panelEdit In Place.

   
3. Select the mass element you want to make additive.
4. Click Edit in Place tab Modify panel Mass Group Operation drop-down Additive.
5. Click Edit in Place tab Edits panel Finish.

   This saves the changes to the mass element and ends the in-place edit session.