Individually group each of the support curves.
-
Click to select the first support curve. Do not select any other points, construction lines, dimensions, or constraints.
-
Click Group on the Change toolbar.
-
Repeat for each support curve so that each curve is in a separate group.
It may be easier to select the support curves by having only the Inputs and Trim_By layers displayed. Click Layer Status on the Layer toolbar to make only those layers visible.