To select trend items for initial display in the Trend Viewer, click an individual item in the navigation tree (select items that have trend extensions). Use the Ctrl or Shift keys to select multiple items.
You can also select items from the Global Search Viewer. In the Global Search Viewer, you can select trend extensions or items with trend extensions. Once the Trend Viewer is displayed, you can add additional trend items by selecting trend extensions or historical trend items in the Select Item dialog box.
Note: If you selected an item from the navigation tree that does not have a trend extension, the Name column in the Legend and Trend Items Table states No Trend Defined.