I'm having some trouble keeping up with this tutorial I'm using to learn SW. I was able to model the pencil until the instructor drew a centerline down the length of the eraser, while the model was in section view. He made it look easy, but when I tried I couldn't select the surface he used for the centerline. I figured this kind of does make sense as what I'm trying to select doesn't actually exist as a surface. But still, how did HE do it?
Anyway, attached is a screenshot and .sldprt. If anyone has the time and willingness to help, that would be most appreciated.