Gravity Wiz // Gravity Perks // GP Nested Forms // Customize the Modal Size
<?php
add_filter( 'gpnf_init_script_args_508_2', 'my_nested_forms_args' );
function my_nested_forms_args( $args ) {
$args['modalWidth'] = 900;
$args['modalHeight'] = 900;
return $args;
}