Currently, Locations cannot be moved between other parent locations, i.e. Tiers.
This can have a negative impact on the project should there be a late design change, or if you may want to change/improve the hierarchy of the locations.
e.g.
Here is a starting structure.
Project
|-- Tier 1
| |-- Location 1
| |-- Location 2
|-- Tier 1
| |-- Location 3
Here is what I may want to change it to.
Project
|-- Tier 1
| |-- Location 1
| |-- Tier 2
| |-- Location 2
|-- Tier 1
| |-- Location 3
