Haw. Rev. Stat. § 576B-104: Remedies cumulative.

(a) Remedies provided by this chapter are cumulative and do not affect the availability of remedies under other law or the recognition of a foreign support order on the basis of comity.

(b) This chapter does not:

(1) Provide the exclusive method of establishing or enforcing a support order under the law of this State; or

(2) Grant a tribunal of this State jurisdiction to render judgment or issue an order relating to child custody or visitation in a proceeding under this chapter.