The roller geometry is the same component. You have nested components with the same component at the bottom level called Rol. Make that component unique in one of the parent components and you’ll be able to modify them independently.
What errors are you getting. What is the text of the error messages?
Unfortunately, because of the way the dynamic component is created, you won’t be able to set the parameters of one roller independent of the other without some editing of the DC. The settings are arranged to change both rollers at the same time.
By the way, it would have been helpful to mention a the beginning that you are referring to dynamic components.