User’s Guide : Basic Data Analysis : Graph Objects : Combining Graphs
  
Combining Graphs
You may also create a graph object by combining two or more existing named graph objects. Simply select all of the desired graphs and then double click on any one of the highlighted names. EViews will create a new, untitled graph, containing all of the selected graphs. An alternative method of combining graphs is to select Quick/Show… and enter the names of the graphs.
Note that combined graphs may not be made auto-updating.