To use this feature you need to add an additional script to your page and populate it with information about the User:

<script>
        var Capture = Capture || [];
        Capture.push(['name', 'John Doe']);
        Capture.push(['fname', 'John']);
        Capture.push(['lname', 'Doe']);
        Capture.push(['email', 'john@doe.com']);
        Capture.push(['car', 'Land Rover']);
        Capture.push(['model', 'Discovery']);
        Capture.push(['mileage', '20,245']);
        Capture.push(['service', 'no']);
        Capture.push(["a1c2a", "url", "https://www.landrover.com/thanks"])
</script>

By default using Name and Email allow you to pre-fill these fields for the user:

You can go a step further and start using some of the Dynamic Text data in your Captures. To do this you can choose any argument to replace during setup and provide:

{{name|fallback}}

The first argument should match the exact data that you want to replace. In this case we'll look at name, then replace it with John Doe. However, if that argument isn't present then we'll fallback to second argument.

Once setup then this is what it might look like for the end user, as you can see it's a much more compelling and personalized Capture compared to the original.