How to change default Exchange (Outlook) subfolder names?

Running Exchange 2013 Server on top of a Windows Server 2012 R2 domain with Outlook 2013 clients.

My multi-site domain is also multilingual. Specifically, some sites are Spanish users and some sites are English users (with bilingual people all mixed in).

Additionally, I make extensive use of Shared folders. Some of these folders are shared by users from different sites (and therefore different languages).

It seems to me that Exchange creates the standard subfolder names (Inbox, Sent Items, Outbox, etc.) based on the language (either system language or browser language) of the first person to actually access the shared folder. That's my guess anyway, but it is not explicitly relevant to my question.

I need to figure out how to do at least one of two things:

1. Can I make the subfolder names change dynamically based on the "local" language of the client accessing the subfolder? I'm talking about the same way that c:\Users\username\Desktop works on pretty much any Windows install anywhere, but for a Spanish-language install you can also use c:\Usuarios\username\Escritorio and it still works as a sort of alias. Additionally, this is the way it is presented to the Spanish-language user, even though "behind-the-scenes" it is still \Desktop
2. Failing that, how can I safely switch the English names to the Spanish names (and/or vice versa) without breaking everything? For example, I have one shared folder that is used by 95% by Spanish speakers, but I guess some English speaker accessed the folder first, and now all my Spanish users have problems because they don't know what an Inbox is... I need to change it to Bandeja de Entrada.