how to create CellZones or cellSet from mesh
 

hi,
please some help!
I try to create a cellZones from all the mesh i have , i need it in an other case .
my mesh is a diamond create with point
(
(0 0.1 0)
(0.1 0 0)
(0 -0.1 0)
(-0.1 0 0)
(0 0.1 0.1)
(0.1 0 0.1)
(0 -0.1 0.1)
(-0.1 0 0.1)
)

I try to create a cellSet or cellZone from this diamond.
Any adea?