Ansys ICEM CFD Interactive is designed to work at the part level. If you have assigned multiple Ansys ICEM CFD mesh methods (Patch Independent Tetra, MultiZone, or MultiZone Quad/Tri) to different bodies of a multibody part, the Ansys ICEM CFD Interactive options specified for the Ansys ICEM CFD method control that appears lowest in the Tree will be honored. That is, Ansys ICEM CFD Interactive options will affect all bodies being meshed with Ansys ICEM CFD methods regardless of whether a particular option is turned on for a particular body.