This defines the contact entities about the base geometries and action geometries by clicking the multi-geometries.
Example (Sphere to Sphere Contact)
1. Click the Sph-Sph icon of the Contact group in the Professional tab. The Finish button will be shown in the top of the Working Window.
2. Choose the creation method as MultiSphere, MultiSphere.
3. Define base spheres.
4. Choose Finish Operation on right-click menu or click Finish located on the top of Working Window.
5. Define action spheres.
6. Choose Finish Operation on right-click menu or click Finish located on the top of Working Window.