Is the category dependent on the OpenCart country?

Question

PHP

Hello, I need to make the categories open when choosing a country (as in the screenshot)

In general, I think it will be done like this:
1) There will be a main Ebay category (menu number 1 in the screenshot)
2) There will be subcategories in the Ebay category - these are countries: USA , Germany, United Kingdom (On the screenshot of the menu at number 2)
3) Each of the subcategories of countries (USA, Germany, Great Britain) will have its own subcategories
Here I implemented (menu 1 in the screenshot) so I removed the categories in the admin panel, and directly entered in The product/category.tpl template file simply displays categories, that is, they will be available only when the top menu is already selected, but how else to make the division into countries?
I hope I explained clearly