Hi Diego_circo,
This isn’t part of the plugin’s API, so I can’t guarantee that this will still be available in future versions of the plugin, but the WP_Query object is available in the template as $ic_posts.
So $ic_posts->post_count will give you the total number of posts being listed.
If you want the current post number, use $ic_posts->current_post. Note that it starts counting at zero, so you may want to add 1 to it.
If you added the following to the top of your custom post_loop_template.php file (right under <div class=”post hentry ivycat-post”>)…
<!-- This will output the post number and total posts -->
<div class="post-count">
<p><?php echo $ic_posts->current_post + 1; ?> of <?php echo $ic_posts->post_count; ?> posts</p>
</div>
… and you were listing, say, 3 posts; you would get something that looked like…
1 of 3 posts
… (post 1 content) …
2 of 3 posts
… (post 2 content) …
3 of 3 posts
… (post 3 content) …
You can check out more Methods and Properties of the $ic_posts (WP_Query) object in the codex:
https://codex.www.ads-software.com/Class_Reference/WP_Query#Properties
Note that it’s called $the_query in their examples.