Спасибо, Рог - я использовал iExplorer, чтобы посмотреть файл Settings.bundle в купленном приложении, в котором это работало: это сложно, но вот как это выглядит.
Root.plist:
<dict>
<key>Type</key>
<string>PSGroupSpecifier</string>
<key>Title</key>
<string>Terms & Conditions</string>
</dict>
<dict>
<key>Type</key>
<string>PSChildPaneSpecifier</string>
<key>Title</key>
<string>Your Terms heading</string>
<key>File</key>
<string>Terms</string>
</dict>
Terms.plist
<dict>
<key>StringsTable</key>
<string>Root</string>
<key>PreferenceSpecifiers</key>
<array>
<dict>
<key>Type</key>
<string>PSGroupSpecifier</string>
<key>Title</key>
<string>Terms1</string>
</dict>
<dict>
<key>Type</key>
<string>PSGroupSpecifier</string>
<key>Title</key>
<string>Terms2</string>
</dict>
<dict>
<key>Type</key>
<string>PSGroupSpecifier</string>
<key>Title</key>
<string>Terms3</string>
</dict>
</array>
</dict>
en.lproj / Root.strings
"Terms1" = "iPhone Application Terms";
"Terms2" = "These terms blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah ";
"Terms3" = "The blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah .";