HORIZ lets you align an instance horizontally.

Select an alignment point using an option from the
Position Menu. CADKEY uses this point to determine 
the tracking path.

Cursor select the instance you want to align with the 
point; CADKEY surrounds the active instance with a dashed,
highlighted box.

Select the point to align the instance with using an
option from the Position Menu.

CADKEY positions the instance you want to align within a
horizontal tracking path.

Select a new alignment position for the instance along the
tracking path using an option from the Position Menu. 
