To fold the color-section open

Hey Atelier_interaktiv!

Please add two color section elements to your page with a unique ID’s – http://kriesi.at/documentation/enfold/wp-content/uploads/sites/2/2013/12/color-section-ID.png
and then add following code to Functions.php file in Appearance > Editor

function add_custom_cs(){
?>
<script>
jQuery(window).load(function(){
jQuery("#your-first-color-section").click(function() {
  jQuery("#your-second-color-section").toggle();
});
});
</script>
<?php
}
add_action('wp_footer', 'add_custom_cs');

and then add following code to Quick CSS

#your-second-color-section { display: none; }

Cheers!
Yigit

Hey!

You can change the code to following one

function add_custom_cs(){
?>
<script>
jQuery(window).load(function(){
jQuery("#your-first-color-section").click(function() {
  jQuery("#your-second-color-section").toggle();
});
jQuery("#your-third-color-section").click(function() {
  jQuery("#your-fourth-color-section").toggle();
});
});
</script>
<?php
}
add_action('wp_footer', 'add_custom_cs');

and then add following code to Quick CSS

#your-fourth-color-section { display: none; }

Cheers!
Yigit