^_^ If you're like me, you probably only use Hero Lab for one fine product. If so, Rob outlined a method here for starting up in a game system. Just append the code for the game system at the end of the shortcut.
The code for "Mutants and Masterminds" is "mutants"
The code for "M&M 3E" is "mutants3"
The code for "Mutants and Masterminds" is "mutants"
The code for "M&M 3E" is "mutants3"