Non-coder

You mean how to send key shortcuts from the Puck?

I'd take a look at https://www.espruino.com/BLE+Keyboard

You should be able to use the code there, and change the btnPressed function to:

function btnPressed() {
  kb.tap(kb.KEY.T, kb.MODIFY.SHIFT | kb.MODIFY.CTRL, function() {
  });
}