Pattern Curve is used for patterning curve-curves in the sketch.
Note: If you have a selection problem change curve rule on top bar shown in the figure
Offset Curve command offsets “curves in the sketch” or “edges on model” in sketch application. Offset curves are directly associated with their main curves.
Mirror command creates a mirror pattern of curves that lie on the sketch. Mirrored curves are directly associated with their symmetry. All changes on the curve