Help with product listing...

Hello,

First, in order to have what you request, you have to go in your required Item Menu.
1. Go to Menus dropdown => Main Menu
2. Select your required Item Menu, click on Name to edit
3. Go to Products options tab
4. Reproduce this configuration from my screenshot :

Hi,

If you're using the "table" layout in your menu item settings, then you should already have something quite close to that, with only the "product description here" missing.
And you could easily add it, by adding the code:
<br/><?php echo $this->row->product_description; ?>
after the code:
<?php echo $this->row->product_name; ?>
in the file product / listing_table.php via the menu Display>Views