In ecomdash, you have the ability to enter in your own HTML listing template. If you navigate to Administration -> Listing Templates, here is where you can click the action dropdown to add a new listing template.
Here is where you can build your listing template. Choose the storefront you would like this template to be for. You can use the ‘Merge Fields’ on the left hand side to merge attributes at the product level in your template. For example, [NAME] will be replaced with the actual product name in your template. The template body is what the description will look like and you can use the ‘source’ button to get the HTML for the template description. Choose the 'Use Advanced HTML Editor?' if you would like to use the text editor so you can code HTML.