Use the Items panel to select measures, dimensions, and hierarchies for a query.
Available box -- Displays a list of measures, dimensions, and hierarchies that you can select for the query.
Add selected items button -- Adds the currently selected item or items to the Selected box. Folders cannot be added to the Selected box. This button is disabled if a folder is selected. To add all items from a folder, you must select the items themselves and then click the Add selected items button.
Add all items button -- Adds all available items to the Selected box, except folders.
Remove selected items button -- Removes the currently selected item or items from the Selected box.
Remove all items button -- Removes all items from the Selected box.
Selected box -- Displays a list of measures, dimensions, and hierarchies that are selected for the query. Any dimensions that are not listed in this box are considered hidden, are assigned a default selection, and are displayed on the Hidden Dimensions panel. The default selection for a hidden dimension is the top level of the default hierarchy. These hidden dimensions are dimensions for the selected measures; therefore, they are included in the dimensions for the selected cube.
Automatically add/remove dimensions box -- Specifies whether the dimensions that are associated with a particular measure are automatically added to or removed from the Selected box when that particular measure is added or removed.
Description bar -- Displays a description of the currently selected item. If multiple items are selected, then the bar displays text for the last item that was selected. The text that is displayed in the Description bar is the value of the Description property of the item.