| style="width:250px;" | Only point, box and sphere objects
| style="width:300px;" | Required for the definition of point scatterers as targets in a radar simulation
|-
| style="width:30px;" | [[File:Virt_group_icon.png]]
| style="width:150px;" | [[Glossary of EM.Cube's Materials, Sources, Devices & Other Physical Object Types#Virtual_Object_Group | Virtual Objects]]
| style="width:200px;" | No ray interaction
| style="width:250px;" | All types of objects
| style="width:300px;" | Used for representing non-physical items
|}