No plus or minus button in Xcode localization settings

Question

I need to translate an iOS-Application within two days, but my XCode versions (4.4 and 4.5 Developer Preview) both don\'t give me the option to add another language. I only get

Answer 1

It seems Xcode 4.5 DP3 completely miss the +/- buttons in the localization pane. I tried Nyon solution to add an additional language (actually before seeing this post). Doing so, I can add a language into the project but I cannot use that new language to localize my files. But thanks to him, I know now that it is the issue with Xcode DP3.

So, what did was very simple: I use the old Xcode 4.3 to localize my file (with + button in the localization pane). Then, I have two versions of the files (one for each language, nicely organized into appropriate lproj). Then I switch back to Xcode 4.5 DP3. Now, both languages (en and the new one) appear in the localization pane. And this time, for all my files!

That is, you have to add a language only once in Xcode 4.3, afterwards, the new language will appear in your language list as it should be.