Click Tools menu Options. At the command prompt,
enter options.
In the Options dialog box, Drafting tab,
change settings as needed:
Marker. Turns
the marker on or off.
Magnet. Turns
the magnet on or off.
Display AutoSnap Tooltip. Turns
tooltips on or off.
Display AutoSnap Aperture
Box. Turns the target box on or off when you specify
an object snap. This setting does not affect object snaps when you are
not using AutoSnap.
AutoSnap Marker Color. Changes
the color of the marker.
AutoSnap Marker Size. Adjusts
the size of the marker.