What I want to do should be possible but I can't figure out how to do it.
Let's say I'm selling shirts, I have two colours of the same shirt, let's say red and blue. now in red I only have sizes S,M,X,XL but for blue we decided to have XXL as well as the sizes available for red, how can I do this? The sizes need to change base on the colour that the customer choose, and I know I can make two different products for red and blue but I want the customer to see everything in a single page.
Thanks in advance for your help