If you build your family tree directly from your family site at MyHeritage.com, please read the following article:How do I add family members to my online tree?
There are several ways to add people to the tree in Family Tree Builder. Notice the highlighted areas in the screenshot below:
1. Use the Add Person button in the upper left hand corner of the Tree View.
2. Click on the empty person cards above or below a person to add parents (above) or children (below).
3. Click on the Add Son or Add Daughter links in the family group section located between parents and children.
4. Click on Edit or right-click on a person’s genealogy card and select either the Parents, Spouses or Children menus to add the corresponding relationship type.