When you say solid do you mean shaded with edges?
I don't think so but you could model the part in a different color than the others (or create a different colored config) and use that color in the drawing. The other parts could be modeled in a different color. This would make a part stand out better.
That could be a good enhancement request!
If the part you want to be shaded is in the front then you can make a display state where only that part is "shaded with edges" and the rest are "hidden lines removed".
But this doesn't work if the part you want to show is in back. See my example below.
Edit: I forgot to mention in your drawing you want to set the view to shaded with edges.