On the Video Management Page, you will see a button for 'Add Captions'
(paid feature only):
There are two ways to access captions:
Opening a video from your My Videos page
If you open a video from your My Videos page, you will see an Add Captions button on the video details page under Video Features on the Video Management Page. Clicking this button will automatically generate captions for your video!
Stopping a recording and automatically opening the Video Management Page
When ending a recording, the Video Management page will automatically open for your video.
You will see 'Add Captions'. Click the Add Captions button and you will see the button changing from Add Captions to Generating...
While Captions are being generated, you will see this "Generating captions..." on top of your video.