Auto Email Reports - Sender field and Language

In my company I work with different brands for different locations, which have different letterheads and email addresses.

On the Notification DocType there is a Sender field which lets you define the email account from which the Notification will be sent.

I was wondering if such a functionality could be set on the Auto Email Report DocType? This to ensure unity of communication to my customers.

Is this something that can easily be customized or is it something that needs to be hard coded?

Furthermore, the report is generated in the language of the system user that created it. Anyway to set the language of the Report on the Report DocType itself? So that for my French customers the report arrives in French, not in Dutch or English.