Go to Cinema 4D top menu > Greyscalegorilla and click Plus Library.
2. On the Plus Library window, click Models tab and select "Baseboard Molding" or "Crown Molding" then select a model and double-click to add to the scene.
3. You will see the sample molding model on the viewport and on the Object Manager with a spline profile.
4. Then you can use the profile along a spline with Sweep object.
Note: If you cannot see the Spline object, please go to Cinema 4D > Edit > Preferences then Import/Export > FBX and check Curves. Restart Cinema 4D. And add the molding model again.
