greyed out sketches in drawing mode

[Anonymous]

Hello
I imported a file with a few sketches which I extruded a little so that I could put them into the drawing mode.
I made a few sketches with lines on it to use them as construction line. But now when I wont to show them the option is greyed out as you can see below. I found a few articles about this problem but nothing could have help me futher. All my sketches in the construction mode are 2D-sketches.

Do you have an idea?

 

[jhackney1972 · Accepted solution]

Construction Lines in the model sketch CANNOT be shown in the drawing.  Only visible lines, that are not consumed, used by any feature, can be made visible in the drawing.  If you attach your model, not drawing, the forum users can confirm.