Calling a page template which is in subdirectory

I have a static page in html which is multilanguage. So, I have created several subdirectories depending on the language is selected, this is, “lang” folder for the languages and “fr” folder for francais and “es” for spanish. However, I don’t know how to call my template page in WordPress from the control panel for those pages are in another folder.

I have evaluated the issue and I know that is an option available from 3.4 version and you have to create a page-templates folder in the root of your theme, but in my case I’m able only to see my template pages which are in the root of my theme, not from the subdirectory.

Now my directory system is:

wp-content -> themes -> myTheme -> [page-templates folder] – index.php / style.css -> [lang folder] -> [es folder] – about_me.php

Any help would be much appreciated.