The OF 1400 mounts to the guide with two screws, that’s it, see picture below.
All right, now I'll fit the end stops to the guide rail. But first a word about the end stops. The end stops
can be set to have either a 16mm or 32mm offset from the edge of the work piece to center of first hole
in the rail (remember this). The end stop has a thumb screw that goes through the holes in the rail into
the stop. I will drill the shelf pins in the cabinet first, so I will set the end stops to the 16mm offset.