Instructions:
1) Click inside the Family Member 1 box (the box edges will be highlighted) and then click on first name from the tree
2) Click inside the Family Member 2 box (the box edges will be highlighted) and then click on second name from the tree
3) Click on Highlight Path. The path of two people will be shown below in yellow/orange
4) Press Clear All and repeat process for other names
5) The boxes only recognizes name clicks and will NOT accept manually typed input