ReCap should automatically caption any video content that is recorded or uploaded into the system. If this doesn’t happen for a particular video, you can prod ReCap to create them for you.
The short screencast below shows how to generate auto-captions for a ReCap recording, or re-generate auto-captions if you already have captions available.
Please note that it can take up to 48 hours after the recording is uploaded and processed before captions are generated. The process shown here will not expedite this.