Custom product list - x product per row in grid view

Hi guys,
I know it is not very complex things and you can modify the css and get the result...
However, why not just give a simple setting option in Opencart admin setting ?
There are couple of reason to do it :
1. Every new shop always use this function. I searched the forum, many guys asked this question, but there is not a common or easy way for an Opencart newbie.
2. It is not a difficult update. (I guess, because zen cart got it)

So, please add this option.

Thanks.