MANUAL lets you align two instances along a vertical or
horizontal tracking path, or along a tracking path that
you determine by cursor selecting various alignment
points.

Unlike the AUTO option, you can align instances of
different drawing scales.

HORIZ   - lets you align an instance horizontally.

VERTICL - lets you align an instances vertically.

ANGLE   - aligns an instance by letting you select the
          alignment point, the instance to align, the
          location to which you want to align the
          instance, and the angle of the tracking line.

3 PTS   - aligns an instance by letting you select two
          alignment points, the instance you want to 
          align, and the location with which you want to
          align the indicated instance.

4 PTS   - aligns and rotates an instance by letting you
          select two alignment points, the instance you want 
          to align, and two locations which CADKEY 
          uses to align the instance.
