Guide

1. Inside Unbounce's page editor, find and select the lightbox button you want to edit.

2. Under the Element tab, go to the Click Action section and tap the drop-down menu next to 'Action'.

3. Select 'Show a Lightbox' from the list of options.

4. Subsequently, tap the 'Lightbox' menu and pick one from the available choices.

5. Once done, click 'Save' to apply the changes.

6. After completing these steps, the Unbounce lightbox will be triggered when the button is clicked.