This command can be executed from the SI Explorer's left pane's navigation buttons, Right-click menu, or keyboard shortcut ALT+Left Arrow.to Go Back and ALT+Right Arrow to Go Forward.
Navigation buttons
Initially the 
Back and 
Forward buttons next the Available Projects will be unavailable. Once you select one or more Jobs, Masters or one of their subfolders you can use the buttons to navigate between the last and previous selected Job or Master folders or subfolders.