You can change the shape of a curve object by moving its segments, nodes and control points. Normally, you move the segments and nodes to make coarse adjustments, then fine tune the shape by moving the control points of the nodes. By holding down CTRL as you drag a node or control point, you can force it to move on a straight horizontal or vertical path.
You can edit a curve object's nodes using the Pick tool or any drawing tool. To edit a curve object's segments and control points you must select it with the Shape tool.
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