◦ —Click in the notebook window to select a free point.
◦ —Enter the X and Y values for the absolute coordinates.
◦ —Select a point and enter relative X and Y value for coordinates to place the new coordinate system relative to the selected point.
◦ —Click a point on an entity to set a coordinate system.
◦ —Click a vertex to place the coordinate on the vertex.
4. At the prompt, enter a name for the datum coordinate system and press ENTER or click
.