The Select Values page allows you to select one or more current values. Depending on the type of value, you might select from a predefined list of available values or you might enter text yourself. These values are specified for a property of an entity, either when adding it or modifying it later on its info page.
For properties like supplemental markings, you select from a list of predefined values. Any custom properties defined by your administrators that have multiple predefined values, from which you can select more than one, would use a separate selection screen.
The icons with double arrowheads (Add All Items or Remove All Items) move an entire list of values in the direction they point. Icons with a single arrowhead (Add Selected Items or Remove Selected Items) move one or more selected values from one list to the other, in the direction of the arrowhead. Move values you want to select to the Current Values list. Move values you do not want to select back to the Available Values list. Then click the Accept button.
In some cases, the predefined values do not appear immediately. You select them by navigating to them.
When there are no predefined values, such as for e-mail addresses, downgrade on events, or declassify on events, you enter text in the Enter Value field. Move it to the Current Values list by clicking the yellow plus icon (Add Item).