[qihqi]

You can always press Cmd and T with different hands... (assuming there is Cmd in both side of your board).

[to3m]

Some PC-style keyboards only have one Windows key, with the right-hand equivalent being the Application key. So you only get one command key in OS X.

Fortunately, you can use Karabiner (https://pqrs.org/osx/karabiner/ - formerly known as KeyRemap4Macbook) to turn the application key into another copy of the command key.

[verisimilidude]

Took the words out of my mouth. You've gotta teach yourself to do this on a split keyboard.