Forms Packet: Motion to Modify Child Support. Forms in this category are now available as Fillable Smart Forms.Contact Court Administration in the county where your case is filed if you need to get a copy of your current child support order. Child Support ezDocs is an interactive, online tool parents can use to complete pro se forms to ask the court to change a child support order. Get the forms online from the court's Child Support Modification Forms Page . Chapter 1: Motion to Modify Child Support - Introduction ; Chapter 2: Motion to Modify Child Support. In this chapter you will learn how to fill out the motion to modify child support form. Motion to Modify Child Support This form requests the court change the existing support order and explain your reasons. Do I have a case for requesting an upward deviation in support, at least until I finish college education? Requesting a change.