Multiple Instances of Asset Key Flexfield (Asset Category/Location/Asset Key)

Summary

Does anyone know if it is possible to use multiple Instances of Asset Key Flexfields (Asset Category/Location/Asset Key)?

Content

Does anyone know if it is possible to use multiple Instances of Asset Key Flexfields (Asset Category/Location/Asset Key)?

It looks like you can create multiple instances but I don't see where you can define what instance to use.  I expected it to be on the FA BOOK but there is no option in the setup pages.

Any guidance would be greatly appreciated.