I need to add an option for time deliveries which would be before 10 in the morning, before noon and before 4 p.m. and I need to put this somewhere in the order process... I would prefer to put this on shipping methods page where I also have a calendar but if this is not possible I would put it on the product description page where I have different colors and sizes so it would be an additional atribute. I'm wondering the following:
Is it possible to easily add THIS option in the checkout step where the customer selects the shipping options and how would I set that up?
If option number one is not possible - can I add this atribute to all of my 1000 products at the same time? We're talking about the product description page where customers select colors, sizes and so on