Quickly skimming through the big manual, here is one approach using the launch controls in the ECU, Jerry;
§7.8.11 Launch / 2 step / 3 step / T-Brake
... The 3-step is typically used as a burnout limiter and will often be linked to a line-lock.
A typical drag racing scenario would go like this: You pull forward into the burnout box, stand on the brakes and flick on the line-lock. This also enables the 3-step. You now do your burnout and the 3-step limits are applied. After your burnout, you pull into stage, depress the clutch (activating the launch switch) and then push the throttle to the floor. The launch settings will hold the engine close to your chosen rpm. When you change gear, keep the throttle planted, and only use the clutch. Now the flat shift settings come into play, and the revs will be limited to those settings. After changing gear and lifting your foot off the clutch, the limiter is disabled. Be sure to also set the normal rev limiter should you miss shift.
Sometimes it might be possible to control a particular feature more than one way. A careful reading of the manual could possibly turn up an alternative solution.
Ed