Call attributes from DB into a PHP & JS table

I've these .js, .php & .tpl files for my Prestashop theme, it makes a table with the attributes including price, quantity and auto calculates them in the end, I wish to add the weight, the reference number and Barcode to this table, I really don't know how to fix it, this a developer idea, but I failed in changing them: To get to change the table for each attribute you need to edit the file: [login to view URL] => function hookProductFooter Then to display them in the TPL file (for single attribute groups types): [login to view URL] Also to affect and display the weight in the bottom you will have to modify the file: [login to view URL] => function ag_qty_change I hope someone help me to edit those three pages to have the weight, reference code & Barcode visible here, and resned them to me, thanks