Object Tag [update]
CentiLeo has the Object Tag that is used to connect with specific Cinema 4D features and other 3rd party plugins. It can be used to assign geometry to particle generators, control the velocity motion blur, setup displacement mapping and curve rendering options. In more detail these topics are described on the other pages:
Visibility Options
Object Tag has visibility objects for direct object visibility, reflection, transmission and global illumination rays.
Supplemental Options
Generate UV Tangents option is responsible to the explicit generation of UV tangent vectors that are used for Anisotropic reflections. So in case the material doesn't setup anisotropic reflections then it's not needed to check this option.
Ignore on Render option doesn't load the object to CentiLeo renderer, it can be used as a visible gizmo in viewport without any influnce in CentiLeo renderer.
AOV Mask Color is used to control the color of this object mask if it's used in the list of AOV masks. See AOV masks page for details.