Click Select on the vertical toolbar.
Select the appropriate filter in the Locate Filter: Root Plates, Root Profiles, Seams, or RefCurve On Surface & Knuckles.
Select the plate system, profile system, or seam to modify.
Click Edit > Change Geometry Type.
The Change Geometry Type dialog box displays.
Select the new geometry type, and then click OK.
Using the ribbon controls for the new geometry type, define the parameters for the object. The workflow is similar to placing a new plate system, profile system, or seam. See the appropriate topic for details:
Place a planar plate system
Place a linear extruded plate system
Place a nonlinear extruded plate system
Place a revolved plate system
Create a ruled plate system using existing curves
Place stiffener profile by intersection
Place stiffener profile by offset
Place stiffener profile by projection
Place stiffener profile by table
Place a seam by intersection
Place a seam by offset
Place a seam by Projection
Place a seam by table
Click Finish on the ribbon bar to complete the geometry type change.