Functions Menu Select:
get point = position of cursor on construction-plane The next selection provides the position of the cursor at the construction-plane. get point = (parametric) position of cursor on object The next selection provides the parametric position at the selected object. If eg the startpoint of a line gets selected: P(L20 MOD(1)) get line = segment of polygon / contour The next selection provides a line. The line is extracted from the selected polygon or contour. The selection of the second segment of a polygon provides: L(S20 MOD(2))