Rising theme, add custom tab with dynamic content. Theme version required: 2.03 or UP.

functions.php

<?php

/**
 * Add custom meta to the course
 */

add_filter( 'rising_course_options', function( $options ){

	$options[] = array(
	'id'          => 'custom_tab',
	'type'        => 'wysiwyg',
	'title'       => esc_html__( 'Course Custom Tab', 'wp-education' ),
	'default'     => '',
	'settings'    => array(
		'textarea_rows' => 5,
		'tinymce'       => true,
		'media_buttons' => false,
		)
	);

	return $options;
});


/**
 * Add Custom Tab
 * Add this code to your theme or child theme functions.php file 
 */

add_filter( 'learn-press/course-tabs', 'rising_course_tab_customize' );

function rising_course_tab_customize( $tabs ){
	$custom_tab = ep_get_post_meta( '_course_side_options', 'custom_tab', '', true, get_the_id() );
	if($custom_tab){
		$tabs['custom_tab'] = array(
			'title'    => __( 'Custom Tab', 'wp-education' ),
			'priority' => 50,
			'callback' => 'rising_learn_press_custom_tab_content'
		);
	}

	return $tabs;
}

// Custom Tab content
if( !function_exists('rising_learn_press_custom_tab_content') ){
	function rising_learn_press_custom_tab_content(){
		$custom_tab = ep_get_post_meta( '_course_side_options', 'custom_tab', '', true, get_the_id() );
		if($custom_tab){
			echo wpautop( $custom_tab );
		}
	}
}