Sample usage:
// Serial #
selection_string = "";
selection_string = build in list(":Serial", serial_list,
" & " , selection_string);
//------------------------------------------------------------------------------
// Label
selection_string = build in list(":Label", label_list, " & " ,
selection_string);
//------------------------------------------------------------------------------
// Gender
selection_string = build in list(":Gender", gender_list, " & "
, selection_string);