If you have a number of graphs open, you can select which one is the active graph in a number of ways:
- click on a graph with the mouse, or
- select Next from the graph System menu, or press <Ctrl+F6>, to activate the next graph in the series (series here simply means the order in which graphs were created and displayed), or
- press <Ctrl+Shift+F6> to select the previous graph in the series.