Hi Rhobur!
Thanks so much, the Tip you shared is exactly what I'm looking for. Unfortunately I'm not able to see the template name or localisation in DEBUG mode.
I have cleared all cache, cache is off anyway, but still DevTools are not showing me the .tpl files localisation or name.
All I can see in the DevTools/Sources is the link to the page I'm looking for 
even CSS files are named like themes/warehousechild/assets/cache/theme-911b761070.css so the DevTools are showing me only cached version of the file only, I can't see the real source. In case of CSS I don't need to necessarily know where the file is exactly stored, as I have own custom.css files for that, but would be nice to see all those file names and localisation, this will elevate my work in Prestashop on another level, and opens a huge possibilities of editing literary anything...
Maybe this works only when the site is developed locally? I have the site on live server right now so maybe this is the case?
Can you advice me feather please?
Many thanks and thank you for your time!
Best Regards.