The user can work the subtract operation for two geometric entities by the following procedure.
•Solid, Solid
•Solid: Selects a solid geometry to be modified.
•Solid: Selects a solid geometry to subtract from the first selected one.
•Solid, MultiSolid
•Solid: Selects a solid geometry.
•MultiSolid: Selects several solid geometries to subtract from the first selected one.