u/Wild-Jicama5606

I'm 6 foot, 154 pounds, I only ride my local BMX trails on 26' dirt jumper with Manitou Circus Expert forks (I don't do any tricks) and I'm not sure on fork settings, on the bigger or faster jumps I'm bmx racing style jumping dropping the back wheel or either trying to pull up but going from wheel high instead or roasting straight up and down. Should they be set hard with more air or run them soft and the blue lever on the bottom is that for the rebound ? what setting is best for that on dirt jumps. Thanks