QUESTION Submenu on Editorial theme

[psa14]

Hi,

first of all thanks Timbow for porting this very good looking theme to GetSimple. I have a question regarding submenus: I'm not very familiar with html and php but I understand the basics. If I look into the code of template.php I see the following code in menu section:

PHP Code:

?php if (function_exists('get_i18n_navigation'))
{echo(get_i18n_navigation(return_page_slug(),0,2,I18N_SHOW_MENU));}
else { get_navigation(return_page_slug()); }  ?>

As far I understand there is already support for submenus due to this php code. If I install the I18N Navigation plugin and echo the output of

PHP Code:

function_exists('get_i18n_navigation') 


it returns true. So I created a subpage and hoped it would look like on the demo page, but unfortunately the subpage didn't appear. I edited the code and pasted some of the examples provided on the I18N Navigation plugin page, the submenu showed up then but it looks really crappy.

Short and sweet: Is it possible to use submenus like shown at HTML5UP Editorial demo page and if do I have missed something?

Thanks in advance for your help!

Patrick