I have few queries after installing silverstripe locally :

1) If I want to add the functioanlity of multi-language then how could I go ahead with it. Does silverstripe has such pulgins/add-ons etc, so that I could use it, if not then how could I do it.

2) If I want to modify some header contents, like I want to add slider or anything, then how could I do it, becuase at admin side, they just given simplly 2-3 options just to change the names and like that.

3) How can add new themes, can you please tell the procedure.

Any help would be highly appreciated.