Here's what to expect when you request for a modification of your child support order. Click here to learn the steps in the modification journey.If you would like to change a child support or custody order that resulted from a SAPCR, you will need to file with the court for a modification. Downloadable forms for eFiling, Divorces, and Suites Affecting the Parent-Child Relationship, Child Support, Hail Claims, Legal, LegalEase, and Passports. You're always welcome to change the way you make your child support payments, but the court-ordered amount can change only through a court order. (Fill in the cause number and court information exactly as it is written on the order you want to change.) In the Interest of the following Minor Child(ren):. Completing the Modification Forms. The next step involves filling out the child support modification forms as outlined in the Texas Family Code. Forms from the Office of the Attorney General (OAG). How to fill out child support modification papers?