[Question] Cube Info

[JIntors 8]

Hi devs, I have a question:

As you can see in image. If I press "OK", I will get blessing marble each time. How do I chose to make the second item?

I know is possible becouse I have saw on other server. But I cant remember how I did it....

PS: The items you see are just for test.

[Aerrow 42]

The more expensive be top.