The Historical Graph dialog box appears. 

In this case, you can examine the history of events
that led to the construction of the Multisections surface.1 element.
Each branch of the graph can be expanded or collapsed depending on
the level of detail required. 
The following icon commands are available: 

Add Graph 
Adds a selected element to the graph 

Remove Graph 
Removes a selected element from the graph 

Reframe 
Centers the graph in the window 

Surface or Part graph representation 
Gives a horizontal or vertical representation 

Parameters 
Displays any parameters associated with the elements in the graph 

Constraints 
Displays any constraints associated with the elements in the
graph 