how can I show a marriage date?

Answer 1

To add or edit a marraige:

1. Click on one of the partners
2. Click on the "Partners" tab on the left sidebar. Note that if they don't have a partner yet, you have to add the partner first with the "Add partner/ex" button.
3. Click on "Edit partnership details"
4. Change the partnership type and add a date and location if desired. then click Okay.

Family Echo doesn't have an option to display partnership dates on the family tree. This is probably because there's not a great way to display the data in situations with multiple partners. But I'm just guessing.