Storyline Closed Captioning-adding Multiple Languages

Hello!  Anyone come up with an easy way to add multiple closed captioning files to a Storyline project.  RISE allows for multiple languages when inserting an MP4 video as easy as uploading the multiple .VVT files, but I do not see an easy way when adding audio to a Storyline project to add multiple languages for the Closed Captioning file.  I only see you can import one or do one manually.  Any thoughts to be able to add ten or more languages as closed captioning in my Storyline projects?  Thank you!