Select File - Open to open a new Graph tab for the selected file. You may select a file from the most recently used list or a browse window opens to allow you to select the project whose response you wish to graph.You may also select a graph file (.sgrx) that you previously created using the File - Save command.
If you select a project file, the initial plot defaults to a Cartesian graph with DB[S11] plotted on the left axis.
If you open a graph file, the plot will be what was saved to the graph file.
Shortcut Key: Ctrl-O