Hook product comments to new tab on product page

[jgriff89]

Hi

I am trying to hook the product comments module so the product comments / reviews show on a new tab on the products page along side the tabs for the description and product data sheet (features).

I can successfully create the new tab by adding the following to the module file productcomments.php:

Top of file: use PrestaShop\PrestaShop\Core\Product\ProductExtraContent;

Under class line:

public function hookdisplayProductExtraContent($params)
{        
    $array = array();
    $array[] = (new PrestaShop\PrestaShop\Core\Product\ProductExtraContent())
            ->setTitle('Reviews')
            ->setContent('content');
    return $array;
}

I have registered the hook in the module, but I can't get the module to display in the tab at all. I have tried various different things including changing ->setContent to  return $this->renderProductCommentsList($params['product']) . $this->renderProductCommentModal($params['product']); and also adding hooks for displayProductTab and displayProductTabContent into the product-tab.tpl and hooking the module to those hooks (I am using classic rocket theme, so has partial tpl files for product tabs).

Does anyone have any ideas?

Cheers