[EDIT] I'm afraid this language feature is gone in Pages 5.*
How does one use different languages in Pages headers and footers?
I don't need spell checking but language switching (for headers and footers in an automatic language different from the system language)
Google (and forums) says:
"Inspector > Text > More > Language" and create custom style.
But... I have no "language" tab in Inspector -> Text -> More
When I select text I see:
(In OS X/Preferences I already selected multiple languages for spell checking)
System: El Capitan