Drag on the image to box each array. The roof to judge is the one in the center of the frame.
F not solar Β· draw box β J/Enter save solar Β· B/β« go back & fix Β· Z undo Β· C clear Β· K skip Β· H guide
F not solar Β· draw box β J/Enter save solar Β· B/β« go back & fix Β· Z undo Β· C clear Β· K skip Β· H guide