The Grab Arc edge function is used to pick up and move a single arc, circle, or ellipse.
To grab an arc or a circle, you must first position the cursor somewhere along the edge (circumference) of the desired arc/circle and then press <left mouse> or <Enter>.
In the event of overlapping targets, arcs on the current layer are given preference over those on other layers, and non-elliptical arcs are given preference over elliptical ones.
Arcs contained within components are accessible only from the proper layer.