Editing unpublished article in Joomla

asked Dec 15, 2012 in General by jomnew
Hi there

I want to add a special field to an articles made by another author. So if the author is a seller and needs to publish the description of a product, I want to create a default element like a check button, or a drop-down list for all the authors while editing the description.

This would be  an published article with text containing the general description of a product.

Does anyone know how to establish this?
Kindly help