[SOLVED] Prestashop 1.6.x How to move related product at hook left column

when you want to move the "related product module" on the left column of the product page, you can do these steps:

1. Add code in file ptsblockrelatedproducts.php 

 public function hookLeftColumn($params)
     return $this->displayRightColumnProduct($params);

like picture

2. Transplant module ptsblockrelatedproducts  at hook leftcolumn

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