Step 1: Click on Structure in the side menu

Click on Manage

Step 3: Click on New Org. Group

Step 4: Give this org. group a name

Step 5: If this org. group has a parent org. group, click on Choose a Parent

Step 6: Under Members click Add New Member to add people to this group

Step 7: Click on Go To Visualizer to see how your org. structure tree looks like