Extended Product Grid with Editor for Magento will help you add the necessary product attributes and edit product data on the product grid to immensely increase time efficiency of your catalog management process. Add attributes to the product grid. It is possible to add any attributes of 'text', 'text area', 'dropdown', 'multiple select' and 'yes/no' types to the product grid. So you can display all the necessary information on your configurable product grid. With the Magento filter by attribute feature you can easily  filter and sort products. Make your Magento admin grid a lot more informative and functional. Disable some columns...