Moving items from right to left causes the elements to go to the bottom of the rich:pickList

Question

Moving items from right to left causes the elements to go to the bottom of the rich:pickList

Assuming I have 5 elements in my pick list and the left hand side shows up as (1,2,3,4,5) and I move to items from the top to the right side.

The list appears as follows left hand side (3,4,5) and right hand side (1,2).

If I move 2 back to the lef, the list appears as follows

left hand side (3,4,5,2) and right hand side appears as (1)

Is there a way to make the "2" item go back to its original position, so that the list appears as (2,3,4,5) instead?