Is it possible to prevent/disable movement of particular values in rich:pickList?

[its_me]

Hello All,

Is it possible to disable movement of a few fields in a rich:pickList? eg:

<rich:pickList value="#{myBean.defaultData}">

                                        <f:selectItems value="#{myBean.allData}"/>

                                    </rich:pickList>

The all data might contain a set of fruits and vegetables. We can add "fruits" and "vegetables" in the <f:selectItems>. But is there any way of preventing the movement of such variables?

Any help Appreciated.

Thanks and Regards,

Nid.....................