Form as dynamic content in guided landing page

I have created a guided landing page template with an area to add a form :

<div class="mktoForm" id="mainForm" mktoName="Main Form"></div>

Inside my Design Studio I have 4 global forms ( with form labels in 4 different languages : Dutch - French - English - German )

All the content on my landing page is segmented ( i have created a language segment ), but I do not find how to have forms in segmented content.

At the place where I construct my landing page I can set only 1 form, the option does not appear at the dynamic content section.