Mappable keyboard command to switch back to LaunchBox from anyjwhere in BigBox

I was in BigBox this morning and need to change things from the games detail menu its 4 layers back to the menu I was hoping for the sake of my sanity that we could add an option on the keyboard (probably not possible for the controller due to its limitations) that would allow for you to map a key that would instantly transfer you from BB to LB no matter where you were in the program.