I'm trying to export a flat pattern of a sheet metal part as a dxf, but making the formed features a separate layer.

I've successfully created a sketch of the cut features to export on a layer separate from the geometry, which contains the formed features.

The only problem is that when I export both the sketch in the dxf, other sketches are being exported as well.  In this case, the sketches that are being included are derived sketches in the flat pattern and there is no way to suppress or use them.

Is there any way to change the inclusion of these sketches in the dxf?