Cubit 16.04 User Documentation
The separate and split commands are used to separate a body with multiple volumes into a multiple bodies with single volumes. The commands are:
Separate {Body|Volume} <id_range|all>
and
Split {Body|Volume} <id_range|all>
Only very rarely will either of these commands be needed. They are provided for the occasional instance that a multi-volume body is found. These commands are interchangeable.
Another related command allows the user to control the separation of bodies after webcutting. In most instances the user will want to separate bodies after webcutting. One reason to possibly have this option turned off is to be able to keep track of all the volumes during a webcut. Setting this option to "off" keeps all volumes in the same body. But the more common approach is to name the original body and allow naming to keep track of volumes. This setting is on by default. The syntax is:
Set Separate After Webcut [ON|Off]