To add additional marriages/unions:
If you are in the Flash tree view use the yellow arrows on the nodes/boxes for that person. The side arrows add a Husband, or Wife.
If you are in the HTML tree view click on the "+" at the bottom of the node for that person to add a Husband, or Wife.
Once you add the additional spouse/partner, you can then update the marriage order of the relationships. Simply click "edit" on the node (Flash tree) or the pencil icon on the bottom right corner of the node (HTML tree) and select the Relationships tab.
Updated: September 24, 2019