Thank's
i discover the file myself but for newbies ( like me ) the word listing don't help .
The word listing mean the files locate at /component/com_hikashop/views/product/tmpl/listing_*_*.php
This file can be override using in joomla Component -> hikashop and then Display -> view and then select using the search functonnalities the active template ( protostar here ) , a view ( product) , the front end , the comoennt ( here hikashop) ,the views ? ( the product ) .
From this page no documentation is available to know what mean all the item under view ( link to module ? to component ? to menu ?)
If i refer to the first post and the capture screen of product listing , no link to documentation ( using the help button ) seem available since the button link to joomla documentation and there is no hikashop help button to know more about the hikashop tab call product options .
Could we have the hiearchy of php file call . The Display -> view give the list but we don't know ( guess) which item are parent of others !
here a capture screen of personnal documentation that try to do that . The hikashop documentation do that but i think with time some item are missing ( no rectangle around the item)