STEP 10: Fill out the Letter to the Clerk (Form G). Complete the Letter to the Clerk of the Superior Court. Fill out the Application for Modification of Court Order or Cross-Application for Modification of a Court Order.Enter in the Year and Case Number of the claim petition and hit Search. Your Motion to Change Venue package should include: 1. Venue is determined at the time the complaint is filed and the motion to change it has to be made within 10 days of filing an answer. Note that the Case Type Number for a name change is 151. Step 2: Fee or Fee Waiver. The court has placed the most commonly used forms on line as a resource. Please be advised that the forms detailed below are intended to be a guide. A collection of court forms used to request to modify child support and custody.