Set Custom Preview Template Path
Set the path to a custom template with which your forms should be displayed when using Live Preview.
Instructions
See “Where do I put snippets?” in our documentation for installation instructions.
Code
Filename: gplp-preview-template.php
<?php
/**
* Gravity Perks // Live Preview // Set Custom Preview Template Path
* https://gravitywiz.com/documentation/gravity-forms-live-preview/
*
* Set the path to a custom template with which your forms should be displayed when using Live Preview.
*/
add_filter( 'gplp_preview_template', function( $template ) {
return get_stylesheet_directory() . '/custom-template.php';
} );