Orbeon Forms 4.5 introduces two features related to repeated content, discussed in other posts:
Work on these enhancements also benefits the Form Builder Choices editor , and you can now reorder choices and have control over where to insert new ones:
In addition, you can now easily switch between the form’s languages directly in the Choices editor, instead of having to close it, switch languages, and come back. This makes localization easier! 
These enhancements will be available in Orbeon Forms 4.5.