Manual

Chapter 5. Browser Operation
51
Tree View Considerations
On some pages there will be a sidebar menu with options that can be expanded:
 A plus (+) sign in front of an item means that there are additional items
nested inside of it. Click the plus sign to expand the view and show the
nested items.
 The plus sign changes to a minus sign (-)when an item is expanded. Click
the minus sign to collapse the view and hide the nested items.
 For devices, if the device is on line, its icon is in GREEN; if it is off line,
its icon is ORANGE.