[O] Control the entries of the index in org-mode exporting

I have a document in Org and I would like to add an index exporting to LaTeX, I would like to control the formatting of the entries in the index as is done in LaTeX with the command \index, e.g. \index{Actors!Jack Nicholson} Any suggestions? THANKS

[O] Language for agenda

How can you change the language in which Emacs displays the Agenda in Org-mode? I would like the days of the week in Italian THANKS!