When you are dealing with a lot of products in Mageno, managing products gets tedious and tedious. And default Magento doesn't help you much in that. MageComp has developed Magento Product Manager in order to help you out managing product easily, right from the Product Grid.
With Product Manger you can add or remove any column from the "Manage Products" and you can edit the products right from the Product Grid. Checkout the demo to experience how exactly Product Manager can help you managing your Magento Store.