Hello
As an option this is not available however I guess you can create the positions manually. Note that these changes will be lost if you ever update your template. I havent tested the following so try at your own risk
Add the following to line 161 of your templates index.php...
<?php if (j51BlockExists($this, 'bottom-4')) { ?>
<div id="container_bottom3_modules" class="jarallax" style="background-position: 50% 0">
<?php if($particle_block == "bottom4") {echo $particles;} ?>
<div class="wrapper960">
<?php j51Block($this, 'bottom-4'); ?>
</div>
</div>
<?php }?>
And replace your templateDetails.xml with the attached (unzip).
Ciaran