N.J. Stat. § 19:24-6
For the purposes of electing delegates-at-large and alternates-at-large and district delegates and alternates to national conventions of the political parties in counties in which paper ballots are used, the county clerk, in prescribing the form of sample ballots and in arranging the names of candidates on the official ballots, shall so arrange the ballot that each voter may vote for each candidate for delegate-at-large and alternate-at-large and each district delegate and alternate individually, or in the alternative, may vote by a single marking indicating a vote for all such candidates who have requested to be grouped together in accordance with the provisions of Revised Statutes 19:24-5, in which case such vote shall constitute and shall be tallied as a separate vote for each of the candidates listed in the group.
N.J.S. § 19:24-6