回复：亲爱的老猫和离婚律师。。

Go to your court room, ask the bailiff for a pink sheet for stipulation. Write down your new agreement and give to the clerk. The judge will sign it and you have to go back there to get it back. If the child support you agreed upon grossly deviates from state guideline, the judge may refuse to sign it and you may have to file an order to show cause anyway.