Here is the Quick Example of Pattern Surface features and more from Surface modeling in Creo 4.0
In the Creo is possible to create a Surface defined by sketched Curves and create Boundary Blend feature.
... in this example I would like to show you - how to create a Datum features (Datum plane offseted from 2nd plane defined by angle) >> all this feature is possible to combine to the Group - as a group / embeded features.
New plane is as Sketch plane for next feature - Projected Curve.
Projected Curve on a surface is possible to reuse as another reference - for example >> Extrude feature defined as surface.
... if it is necessary for your design create multiple shapes - you can use Pattern feature(s).
Select feature for Pattern >> define Pattern type and dimensions >> Select Children feature and use Reference Pattern(s).
Note: The features for Pattern is possible to Group into one and use as "One Pattern feature"
Hide all unnecessary Curve features >> Save Layer Status >> finish and Save model.