Customizr Theme | How to add a second menu?

Question

PHP

There is a site with the Customizr theme
Website - dom-na-riviere.com.swtest.ru/ru
Theme on github - https://github.com/presscustomizr/customizr
You need to add a second menu. For the design to be the same (including adaptability)
The problem is that the menu is made through a lot of events and filters (3 php and they are intertwined with each other). I have been looking for a start for days, which I could grab onto and gradually create a second menu.
There are no problems with registration and displaying the second menu. But with the adaptability trouble. The second menu, which I added, does not have a button, by clicking on which the menu should drop out on mobile phones. Through the console, if I manually change display: none to display: block . That button appears, only these buttons open two menus at once. Whichever button you press, both menus open.
I understand it's about classes. Just because the menu is built on add_action and on add_filter - I get confused. I have been digging in this web for days. Your head will burst soon. Please give practical advice in which direction to dig and which filter, event to grab onto

Answer 1

Understood. Who faced the same task, start from the function - tc_menu_display in the file - class-header-menu.php. Don't forget to link it to navbar2 by creating a duplicate of navbar. If you need to display in another place, in a different from the first menu