Logo In secondary menu

Hi there,

This hook should work: https://docs.generatepress.com/article/generate_inside_secondary_navigation/

So something like this:

add_action( 'generate_inside_secondary_navigation','add_secondary_navigation_logo' );  
function add_secondary_navigation_logo() { ?> 
    <div class="secondary-navigation-logo">
        <img src="THE URL TO YOUR IMAGE" alt="" />
    </div>
<?php }

Adding PHP: https://docs.generatepress.com/article/adding-php/