Adjusting Snap and Grid

To rotate the snap angle and change its base point

1. From the Tools menu, choose Drawing Aids.
2. In the Drawing Aids dialog box under Snap, enter a rotation angle in the Snap Angle box.
3. If you want to set the base point in order to align snap locations, enter the X and Y coordinate values in the X Base and Y Base boxes.
4. Choose OK.

Command line equivalent: DDRMODES