Is there a shortcut that functions as a "back button"?
 

I'm wondering if there is a shortcut that can take me to previous perspective or project that I was just in. For example, if I'm within a particular project, then jump to my inbox, is there a shortcut I can press that will take me back to the project that I was just in?

It would be great if I can keep using this shortcut and keep going back (more than one instance), but I'm hoping it's possible to go back at least one instance.