In order to amend the original complaint you would need to file an amended Complaint if you initiated the child custody action originally. File an "amended petition" to add something to, or withdraw something from, the original petition.Have an attorney look over your amended petition. Amended to clarify the procedure for offering a voluntary remittitur. This document contains the Federal Rules of Civil Procedure to- gether with forms, as amended to December 1, 2014. A trial date or hearing cannot be postponed or changed without the consent of the Court. Rule 11 of the parties or Court order after motion showing good cause. By selecting a Bench Trial, the parties waive their right to a Jury Trial. A party may amend his pleading once without leave of court within twenty days after its service, or at any time before the period for responding to it expires. , Minute Order, United States v.