Different 'Out Of Stock' Messages for Tangible and Digital Products for v3

Do you sell digital and tangible products from your store? this mod allows you to have two different 'Out Of Stock' messages to represent the true state of the product.

Digital products do not go out of stock, but they can be made unavailable. Tangible products do go out of stock. Therefore having a different message display for each type of product is a logical thing to do. Alternatively for stores looking for a different approach, one message can say 'out of stock', the other could say 'available instore only', or 'coming soon'. The possabilities are endless.

For CubeCart 3.0.x.