Storage dimension groups - Financial inventory by Location

Dear Gurus,
In Dynamics AX 2012 has anyone been able to track Financial inventory by location? There is a checkbox in the storage dimension group form, but the field is not selectable.
Is it not possible to track financial inventory by location in Dynamics AX?
Thanks,
Tony

It is not really a tracking element you would want in my opinion (although every business is different). Site and Warehouse are understandable but a location within a warehouse impacting on a costing difference? Why? Costing at that level I doubt was designed, it maybe there as a common approach, but if not selectable it is not actually there.