To edit existing Wedding Party members, go to your Wedding Website > Manage Your Website, scroll down to the Wedding Party page section, then hover over the already created Wedding Party member, and click Edit Member.

You will then be able to edit your party or your partner's party. If you want to create Wedding Party members, click Add More to Wedding Party, then select Person, and add their info, maybe a photo, then when you’re finished, click either Save and Close, or Save and Preview.