New to SW. Working on the part shown in first attached image.  I don't want the ribs (one on top, another on bottom) to be hatched in the section view (see second attached image).  From what I can tell I should be able to select these features in the section scope dialog box, but nothing is available to select.  I created the top rib by extractiing a sketch and the bottom rib using the rib feature.  Can I exclude these features from being hatched?  If not, is there a way to manually hatch a section view?

Thanks in advance.