Multi-level navigation and easy menu definition

[[/root.]]

Hi there,

thanks for your awesome plugins. I have a quick question.

I'm trying to display the menu using default code/behavior i.e

Code:

<?php get_i18n_navigation(return_page_slug(),1,99) ?>

menu items are starting from level 1 because my parent page (0) being used as a header. the code works well when browse the level 1 page but on the index page I don't see anything.

Normally I need to use this code to show sub pages of a parent page called page-slug

Code:

<?php get_i18n_navigation('page-slug',1,100,I18N_SHOW_MENU); ?>

and this code works well but in this case I lose the required behavior i.e displaying child pages of a current opened page.

What should I change in the code to make the menu visible on the main page?

Sorry if it sounds too complicated, I tried to describe my problem as simple as possible

The attached screenshot shows the menu on a sub page (level 1) but is empty on the homepage.