Download and complete Motion and Notice forms from the Illinois Office of the Courts. A motion is a written request to the court asking it to do something or require your opponent to do something.For more information about going to court, including how to fill out and file forms, call or text. Illinois Court Help at 833-411-1121 or go to ilcourthelp.gov. Each Motion shall be in writing. Find out about motions you can file after your trial ends instead of appealing. Includes required forms and rules. How do I file a motion? All documents are filed in the Office of the Circuit Clerk. To change child custody or placement in Illinois, you must file a motion to modify child custody.