APEX had three multi value selectors: check box, multi select and list manager. APEX 3.0 introduces a new multi value selector: the shuttle. An shuttle consists of two text areas with buttons between the the area's to move items back and forth. At the right side, the selection, there are buttons to change the order of the items in the right text area. All selectors are based on a list of values. Setting or getting values of these selectors can be done with colon separated strings i.e.
The shuttle and list manager also preserve the select order as you can see in the picture. For each selector the same values in the same order are selected: first Violet and second Indigo. As you can see in the text boxes the shuttle and list manager preserve selection order in contrary with check box and multi select. The picture shown here is a modified version of on-line demo Item Types.