I localized a part of my application with creating a base.lproj storyboard and 3 string files for it. It was a month ago and after that I added new view controller to app, b
I got a huge storyboard with a lot of strings there. Two languages base english and another arabic. The task was to add some fields and labels to storyboard and add localization for them without any scripts and NSLocalizableStrings.
For me helped next:
First: Ensure, you have git to prevent unexpectable changes.
Editor -> Export For Localization.... Save the ar.xliff file somewhere.