The Resources and Budget combo box allows you modify the bottom row of the logframe (the Activities section). You can choose between:
Note that you can fill out all this information, and use the combo box to switch between one view and another. No information is lost when you change this view.
As an alternative to using the combo box on the Lay-out toolbar, you can also use the Main menu and click on Lay-out > Show… > Process Indicators (or Resources and Budget).