Dezina,
Thanks for your help and the link. However, I am still finding it really difficult to get this working - I am not very techical!

I currently have the following set up

Option Name - Size (size)

Option Value - small (size)
medium (size)
large (size)


If I then set up another option ...say choose (as you suggest), do I select this as a read only, text, size - I am not sure.

Also once I have set up the other option what do I match it against when selecting the option value?

Sorry to keep asking questions but I just can't quite grasp the logic of this.
Thanks