Hi,
Indeed, having modules set to different categories could be a possibility. And as you say, by default, Joomla doesn't allow for that.
However, with Advanced Modules Manager (
extensions.joomla.org/extensions/style-a...les-management/10307
), you can actually restrict modules to different categories of HikaShop.
So that's a first "easy" solution.
Otherwise, yes, it would require to modify the code of the file "listing" of the view "product"/"category" (based on the type of content of your menu) via the menu Display>Views and move the display of the description where you want:
<?php echo JHTML::_('content.prepare',$this->element->category_description); ?>