Have Closed Captions generate as a variable

I am working on a project, where I have a character who is talking to the user and going into scenarios. Rather than create caption shapes and then typing all of the speaking points out and matching it to the audio on the slide, I was hoping to have/create a variable where the created closed captions could be shown in a text field or wherever else I want on the page rather than the standard top or bottom of the page. This way I could modify the way they look, where they are located, and reduce the time it takes to create conversation scenarios by not having duplicate work.