If the object shows a solid anchor (indicating a special Point-Reshape case), click the right mouse button and click To Curves. This converts the special object to curves and displays the object's hollow anchors.
Click an anchor to select it. It turns solid.
Drag one of the anchor's control points to reshape the curve.
or
Drag the anchor to a new location to reshape the object.
The curve reshape cursor becomes solid when you are over an anchor
.