To create a midroll annotation in Yabber you simply provide the necessary text, define the start time of the message, the duration (or the time the annotation remains on your video), and an optional URL. As many annotations may be added as required.
An example of how we’ve integrated the Wistia system to your existing landing pages is by way of the ‘Optional URL’ field (which turns your text field into a link). You have the choice of defining your own custom URL or choosing an existing landing page.
Annotations are different to Captions, the latter which are an accessibility feature that also serves titles to the 85%+ of people that start watching your Facebook videos in a muted mode (lower on other Platforms). They're also very different to the turnstile (gateway, or email-wall) feature.