A plane can be constructed by changing any feature into a plane. PC-DMIS will construct the plane at the centroid of the input feature.
To construct a cast plane:
Access the Construct Plane dialog box (Insert | Feature | Constructed | Plane).
Select the Cast option.
Select one feature of any type.
Click the Create button.
The Edit window command
line for this option would read:
CONSTR/PLANE,CAST,feat_1