Hello @rd16

Thanks for the appreciation for the theme.

Query:

1. How can I put the slider above the main menu and put the section with logo under the menu?

Response:
For the solution you need to create and activate child theme.
Reference here for child theme. https://codex.wordpress.org/Child_Themes

After successfully creating child theme, now in your functions.php file in child theme you need to copy and paste following code as a whole.

<?php  
add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' );
function theme_enqueue_styles() {
    wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );
    
}
function child_remove_parent_function() {
    
    remove_action( 'education_hub_action_after_header', 'education_hub_add_primary_navigation', 20 );
    remove_action( 'education_hub_action_before_content', 'education_hub_add_featured_slider', 5 );
}
add_action( 'wp_loaded', 'child_remove_parent_function' );

add_action( 'education_hub_action_before_header', 'education_hub_add_primary_navigation', 7  );

add_action( 'education_hub_action_before_header', 'education_hub_add_featured_slider', 6  );

Hope this will solve your issue.
If you have any confusion regarding this let me know.

Best Regards!!!

Hello @rd16

Thanks for your appreciation for the service.
Let me know how it goes after you have tried the solution.
And for the Query no.2

Is it possible to move the action button on the slider to a specified position ?

As much as I would love to help you with this but just saying action button on the slider confused me.
Do you mean the caption section or the navigation??

Regards!!!