Delta mode is enabled when viewing the differences between two snapshots, enable this view as follows from the top menu:

• DELTAS > Select the last option (the name will vary)

Note: Option 1 in this makes shows just snapshot1, option 2 just snapshot2

When in delta mode the graph will be elaborated as follows:

• The icons will show a tick for new (in snapshot 2 not in snapshot1)

• The icons will shows a cross for removed (in snapshot 1, not in 2)

• The icons will show a info for changed (an attribute value changed)

When in delta mode the control panel Filter Nodes tree will include the option to filter by changed state. Tick and untick as shown to the right to include and exclude based on the delta between snapshot 1 and 2