Unlike sketches, projected curves (Sketch-sketch;sketch-surface) remain visible at all times, unless manually hidden.  Is there a check box that will hide these curves in realtime?  It is a pain while moving quickly to need to dig through the feature tree and manually hide each curve that I don't need. 

I can understand why this has not been an issue for most engineers, but as an industrial designer, complex surfacing requires extensive use of projected curves.  It can get quite confusing.

Any thoughts?