Once I changed 'page' to my CPT 'lessons', your code worked perfectly. Thank you!!! 

Please use this code: 

// Add a filter callback function
function custom_filter_recent_comments_args( $args ) {
	// Modify the arguments to include your custom post type "Lessons" and exclude default post type
	$args = array( 'page' );

	return $args;
}

// Hook the filter function to the wpdiscuz_widget_recent_comments_args hook
add_filter( 'wpdiscuz_widget_recent_comments_args', 'custom_filter_recent_comments_args', 1 );

I'm sorry to be a pest, but I guess I'm considered a non-coder here (just an above-average end-user). I checked out this article you mentioned, but the examples don't seem to be complete in a way that I feel confident I can reverse engineer one to fit my needs. 

Would it be possible for you (or someone else on the team) to share an example code I can paste into my "Code Snippets" plugin to filter out the "post" CPT and just show my CPT "Lessons" (as "Recent Comments") using this hook you said was just added?

I am guessing it looks something like this below (with the help of ChatGPT), but as it's currently written, isn't working for me when I paste it in and activate it (it's still showing "Post" post type comments as well):

// Add a filter callback function
function custom_filter_recent_comments_args($args) {
    // Check if the comments widget is being displayed
    if (is_active_widget(false, false, 'wpdiscuz_recent_comments_widget', true)) {
        // Modify the arguments to include your custom post type "Lessons" and exclude default post type
        $args = array('lessons');
    }

    return $args;
}

// Hook the filter function to the wpdiscuz_widget_recent_comments_args hook
add_filter('wpdiscuz_widget_recent_comments_args', 'custom_filter_recent_comments_args');

The following hooks are added: 

• apply_filters("wpdiscuz_widget_most_active_comments_threads_args", $all_comms_args); 
• apply_filters("wpdiscuz_widget_most_voted_comments_args", $all_comms_args);  
• apply_filters("wpdiscuz_widget_recent_comments_args", $args);  
• apply_filters("wpdiscuz_widget_top_rated_posts_args", $all_posts_args);

This article should be helpful for you:

https://developer.wordpress.org/reference/functions/get_comments/

7.2.5

1. Added: New hooks to manage comments/posts args in tabs

 

I'll update this topic once the new version is ready.

Oh, great — thank you! I will keep an eye out for the next version.

We're going to adda new hook in the next version of the addon. So once the new version is ready you'll be able to filter the widget.

But, when I go to my Addon widget "wpDiscuz Widgets" to display "Recent Comments" from my course lessons, the widget also confusingly displays recent comments from my blog posts as well, where I also have wpDiscuz setup to allow comments. There doesn't seem to be a pulldown menu option in this paid widget to allow me to choose which post type I want to pull from.

Is there a way to make this work?