A control apparatus for an outboard motor mounted on a boat and equipped with a transmission having at least forward first and second speed gears and a reverse gear. The processor has a compartment in which are mounted a wafer transfer, coating station and thermal treatment station. The window bounds a sweep of the reference voltages. Operations can be switched from drilling with jointed drillpipe in a conventional manner, into performing underbalanced wireline andor coiled tubing activities with full well pressure, much more effectively than with prior art. The scanner moves over the second page, contacts the reverse side of the lifted first page, and completes turning of the first page.