Multi-language support - translate captions

Hello, I have a course that is intended to support multiple languages. One thing I find missing from the translation export function is to translate captions. I found that producing small videos in Camtasia offers a lot of flexibility in my projects.  I have the narration for the video in a separate audio file (in reality I produce the audio and video in Camtasia, but export each as a separate file. I do this for consistency with the captions. The captions in Storyline look different than with Camtasia...). I import the video and audio file into my Storyline project, and then add the captions. When I add the other languages, the captions will have to be translated as well.