Causes lines or pairs of points to lie parallel to the X axis of the current coordinate system.
This command is equivalent to the Horizontal option in GEOMCONSTRAINT.
You can select different constraint points on the same object or different objects.
The following are the valid constraint objects and points:
The following prompts are displayed.
Selects two constraint points instead of an object.
The second selected point on an object is made horizontal to the first selected point.