In addition to any other procedure which may exist by law, any party seeking the recalculation of support and modification under a child support order due to a substantial change in circumstances pursuant to the provisions of section one hundred six of this article may seek and obtain the assistance of the Bureau of Child Support Enforcement, pursuant to the procedures established under the provisions of sections two hundred one through two hundred six, inclusive, article eighteen of this chapter, in the preparation, assessment and presentation of an appropriate petition for modification of a support order, including the identification and narrowing of issues associated with a requested recalculation of support prior to filing the petition, and the preparation and presentation of an appropriate petition and proposed order for modification for consideration by the family court.