It would be great if, in the View Tree mode, you could move down the tree from the person on the left by selecting an icon (such as <) that popped up a list of all that person’s children and allowed you to select one and then would automatically display the tree mode for that child. It would save a lot of steps. (If the person on the left only had one child, the popup could be skipped and the tree would just re-position to the person’s child.)