Fast shortcuts to system functions!!!! OptimPrefs is the simplest existing option to change the settings on your Mac, without having to go into Preferences and make changes one by one. Create a Mode for when you're at home, one for the office, one for the plane, one for ... and switch between them with a simple "click". - Wi-Fi. - Volume slider. - Mute. - Brightness slider. - Locations. Win on time and in comfort.