To load a form into your lightbox:
- If you haven't already, add a new lightbox button by dragging and dropping the Lightbox Button
widget from the left-hand side of the screen to the area on the page where you'd like to add the button. - Click the Lightbox tab in the upper left-hand corner of the Page Builder, then drag and drop the Form
widget from the panel on the left into the Lightbox content field. A new dialog box will appear. 
Note:
Remember that only one form is allowed per landing page, so if your Form button is greyed out you'll need to remove the existing form before you can add a new one.
- Design your form and click the Done button once you're finished.
You can now modify the form on your Lightbox just as you would in any other page in the Builder.
