This filter is useful to add/modify content of form shortcode that will render in front side.
Hook Name: arm_change_content_before_display_form
Hook Type: Filter
Usage:
add_filter( 'arm_change_content_before_display_form', 'your_function', 10, 3);
function your_function($content, $form, $atts) {
//$content Form Content.
//$form Form Object.
//$atts Shortcode Arguments.
$content = 'Some Link ' . $content;
return $content;
}