Making the child theme directory in inc/structure/ will not overwrite the parent theme. First of all you have to create a two files styles.css and functions.php file. First of all you have to unhook the functions and customize the code according to your necessary.
We have written many times how to unhook functions. You can search on forum too.
For more reference visit below link Link
Thank you for your reply.
as I said I created according to the wp-codex thus I have created the style.css en functions.php.
This should just work and is a standard way of working with child themes.
The unhooking process confuses me. Why do I have to paste a full php page including html in my functions.php to be able to change things.
We have designed our theme using action hook. So making the same structure will not overwrite the parent theme. Its our Coding Standard. The above link was just an example to help you. Adding that code to child theme will not make your site slow because anyway either from parent or from child theme your code must be loaded.
Thank you
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