Apple is famous for beautiful design with poor usability. After typing for a while, my fingers hurt so I decided not to use the Mac keyboard and replace it with a PC keyboard, in my case is the shiny and hefty Realforce 87UW keyboard. The downside of PC keyboard is the position of the Windows ~ Apple key is swapped with the Alt key. In one of my old post, I used DoubleCommand to remap those keys, yet I have been feeling there must be a easier way. Now I found a way w/o installing any external apps, here is how:
1. Go to System Preferences > Keyboards > Modifiers Keys
2. Select the keyboard: Realforce 87 (yours differs)
3. Select Apple Command for Option Key
4. Select Option Key for Apple Command
