Can I create a form with a Fixed & Pre-populated value?

While setting up a Capture Leads campaign, sometimes our users find themselves in a position that they need to have the exact same response from all respondents to the campaign. An example is a webinar registration form. If we set up the form with the webinar schedule, which we intend to use later for sending a reminder, we can pre-populate the webinar date and time with a fixed value, as shown in the image value. The users can even use the hide option to hide the field, if they do not want the respondents to change the value