Asset Location Addition

Dear All

I'm able to view and use the locations/areas which are available for use in the tab of location/comments attributes while adding a new asset using navigation Main Menu->Asset Management->Asset Transactions->Owned Assets->Basic Add

But when I tried to open new values (LOV) for the location as well as area I might be ending up at a wrong navigation i.e. Main Menu->Set Up Financials/Supply Chain->Product Related->Asset Management->Physical Definitions --> (area definition or location definition) as couldn't be able to add new values on this navigation.

Kindly guide as to where to add location definition as well as related area definition for later use in the basic add. Also, if a loader/process needs to be executed after location/area addition kindly do mention it as well.