By following a segment
You use this function to copy part of another segment in Graphics, using the mouse. The portion of the segment is copied to the end of the digitiser string. This function is useful for digitising segments with common boundaries, for example, specifying low and high grade regions.
Note: When you use this function, the points are not projected to the active plane, even if you have selected the Project selections to the current plane check box in the Digitiser string attributes form.
To run this function: Choose Create > Digitise > By following a segment, or...