I want to draw an "X" mark for an elevation opening on the label GDL.
ADD2 LABEL_POSITION [2] [1] + LABEL_POSITION [3] [1], LABEL_POSITION [2]
[2] + LABEL_POSITION [3] [2] LINE2 0,0, OPENING_WIDTH,
OPENING_HEIGHTLINE2 0, OPENING_HEIGHT, OPENING_WIDTH...