TWINCOLSELECTED:- can we have user input to have filter on it

HI i am using TwinColSelected vaadin feature i just wan to filter those 2 table on basis of user input .So for that i provide 2 textare on above it so when user will enter any value on that basis list will be filter i.e.(Availabe & selected).I implemented that feature on Available table but not able to implemented on Selected table i.e right hand side as i am not able to get control of the list which is adding in that table can any one sugget me how to implement it.Its urgent.