They could vote for two different parties.
Just to clarify the point about parties, when we began our gender and diversity analysis of the systems available to island voters, one of the first questions that came up was whether any of these systems would reduce the role of political parties. That was a value held by one of the people in the focus group very strongly, and probably more than one. None of the systems on offer truly reduce the role of political parties.
I should also mention that I recently came from national meetings of the National Coalition of Provincial and Territorial Advisory Councils on the Status of Women. My colleague in the Northwest Territories, where they have consensus government, has found that their analysis over time has shown that the absence of parties is a barrier to women, because the parties are able to buffer some of the financial inequalities between men and women as individual candidates.