Response Editor (for Google Forms)
Response Editor allows the owner of a Form to edit responses and get a response edit URL to share with a collaborator or the respondent themselves.
Form Translator (for Google Forms)
Form Translator allows the owner of a Form to automatically translate and generate copies of the form in other languages.
Suggest a New Google Add-on
If you have an idea or requirement for a new Google add-on then please feel free to contact me to discuss your ideas.