To add a new target position to your course with Map Manager, press the + Add New Target Position button either from the + Target icon or via the ACTIONS button menu (••• on mobile). Then click on the map where the new target position belongs, and drag the point to correct its location as needed. 

Once you confirm the pin position, you'll be prompted to associate this target with the hole on which it's played. Assign a label to the target ("Alternate," for example), and select whether this pin position is active or inactive. You can choose "Edit these options" and "+ Add Target Label" if you need to create a new label to be used at the course.