hide take this course button and if it is hidden then print a shortcode in the place of take this course button.

add_filter('wplms_course_creation_tabs','shakti_add_in_front_end',487);
 
function shakti_add_in_front_end($settings){            
                
    $fields = $settings['course_settings']['fields'];
    $arr=array(array(
                'label' => __('Hide take this course button','wplms-front-end'),
                'desc'  => __('Hide take this course button on single course page','wplms-front-end'), 
                'text'=>__('To hide the take this course button on single course page','wplms-front-end' ),
                'id'  => 'hide_take_this_course_button',
                'type'	=> 'yesno',
		        'options' => array(
		          array('value' => 'S',
		                'label' =>__('Show','vibe-customtypes')),
		          array('value' => 'H',
		                'label' =>__('Hide','vibe-customtypes')),
		        ),
		        'std'   => 'S'
                ),
    array(
                'label' => __('Enter Shortcode','wplms-front-end'), // <label>
                'desc'  => __('This shortcode will appear only if take this course button is','wplms-front-end'), 
                'text'=>__("This shortcode will appear only if the take this course button is hidden (NOTE: use single quotes within shortcode for example [icon icon='icon-cancel-squared' size='18px']",'wplms-front-end' ),
                'id'  => 'show_shortcode',
				'default'=>  __('Enter your shortcode','wplms-front-end'),
				'type'	=> 'text'
                )
                );

    array_splice($fields, (count($fields)-1), 0,$arr );
    $settings['course_settings']['fields'] = $fields;  

  return $settings;
}


add_action('wplms_the_course_button', 'shakti_hide_take_this_course_button', 488);

function shakti_hide_take_this_course_button(){
	global $post;
	$course_id = $post->ID;
	$option = get_post_meta($course_id,'hide_take_this_course_button', true);
	$showShortcode = get_post_meta($course_id,'show_shortcode', true);
	$hide = false;
	if($option == 'H' && isset($option)){
		?>
		<style>
			.single-course .widget.pricing form input.course_button.full.button {display: none;}
		</style>
	    <?php
	    $hide = true;
	}
	if($hide){
		echo "<h5> Check Course Price Or Register </h5>";
		echo do_shortcode($showShortcode);
	}
}

link: https://wplms.io/support/knowledge-base/hide-take-this-course-button-show-the-custom-form-or-render-any-shortcode-in-place-of-that-button/

Email me: madhvendras84@gmail.com