Adding Pages at Top Menu
Using Jamroom
It will depend on which skin you are using, but you would have to modify the menu template if you don't want to use Site Builder.
<div class="col9">
<div class="col12 last">
<div class="col3 last">
<div class="body_1">
{jrCore_include template="side.tpl"}
</div>
</div>
{if isset($_user.user_language) && $_user.user_language == 'de-DE'}
<a href="#">German Link Here</a>
{else}
<a href="#">Default Language Link Here</a>
{/if}