Unscrew the screw [1] of the metal compass and remove the regulation rod [2] then you can insert again the regulation rod with the pencil bearing turned up, whether in a side for little plates, or in the other, for big plates. Insert the pencil [3] inside the rubber tube [4] and put in the position to have the compass body [5] parallel to the plate. Then you can position the regulation rod with the pencil to the distance that you want, to lean the two pegs [6], on the border plate and turn around the plate.
