Great - just exactly what I needed to know. But contrary to your example I need to do all three lines (paths) as seperate sketch. Otherwise one line fades away after I did the first pipe piece. Strange. Nevertheless I got that thing solved. Thanks.
After you have used a feature (pipe in this case) Fusion will hide the sketch and you will have to turn on the visibility again (click the eye to right of sketch in browser). There is preference you can change telling Fusion to not hide sketches.
