Sometimes I feel, It would be great if we have a shortcut to the application instead of opening it from sprintr and then version selector. With one click application and modular will be opened otherwise will have the default app-setup for every version from File Menu.
Do you mean a fast way to open a project in the right Studio Pro? You could add the folder that contains all your Mendix projects to the Windows task bar (right click on the task bar > Tool bars > New tool bar > select the folder. Next time you can open any project via this new link by selecting the .mpr file.