Tutorial - Spine feature in Creo Elements aka Pro/E?

Here is the tutorial.
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Step 1:
Sketch >> Top plane.
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Step 2:
Draw a semi-circle.
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Step 3:
Extrude it as surface.
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Step 4:
Sketch >> Top plane.
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Step 5:
Change the view from planar using mouse middle button.
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Step 6:
Right click and hold it. Then select references.
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Step 7:
Select the end points on top plane as reference.
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Step 8:
Also select the other point too.
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Step 9:
Sketch orientation.
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Step 10:
Spline tool.
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Step 11:
Draw a spline by using vertex references.
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Step 12:
Exit the sketch.
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Step 13:
Insert >> Warp.
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Step 14:
Select the quilt as the body to deform.
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Step 15:
Click Spine tool.
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Step 16:
Select the spline as the chain.
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Step 17:
Type to warp radially from center.
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Step 18:
Now deform the quilt using the control points.
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Step 19:
Click OK and the feature is generated.