Activate Flexible Component PropertyManager

To open the Activate Flexible Component PropertyManager:

Open an assembly, right-click a part, and click Make Part Flexible in the context toolbar.

Flexible References

External References in the selected component Lists the flexible references that you need to remap. When you select a reference, a preview appears in the graphics area. Select an entity of the same type in the graphics area to specify the reference.
Indicates a reference that is not specified.
Indicates a reference that is specified.
Use mass property from rigid state Applies the mass properties of the component in its rigid state to the activated flexible component as overridden mass properties.