Mark the centre position of the shelf on the sides of the cabinet.
Place the marking jig on the front edge and mark the drilling centres.
Screw in the marking tip onto the back side of the marking gauge.
Place the marking jig on the rear edge of the panel and mark the drilling centres.
Drill the marked positions.
Mark the centre of the connector on the shelf.
Cut longitudinal and P-system grooves in the shelf.
Install Divario P-18 into the sides and the shelf.
Slide the shelf in - and you're done!