Button in photo mode to toggle between the highest graphics settings and your current settings

Sorry for the lengthy title. Now, the suggestion at hand: Some people (Like myself) can't run the game at high graphics settings, but they want their screenshots to look as pretty as possible but they're too lazy to go into the settings menu and change them. This is why I want a button (or an automated process) that toggles between your current settings and the highest possible settings, until the screenshot is taken.