You can enter your Plan by Location in two ways:
Via Filter:
Filter Plan by Location >
Click "Edit" on Plan >
Enter the Plan expected.
All the view will be filtered for this specific location.
Via Sub-Group:
Group by Plan by Sub-Group: Location >
Click "Edit" on Plan >
Enter the Plan expected.
In this case you would be able to see all the split by Location at the same time.
Now this Plan will be considered for the "To Buy" recommendations!
Learn more about Editing your Plan here.
Learn more about Ordering by Location here.