If you are having issues resgistering more than 2 key strokes at once its because most keyboards wont register more than 2 keys from the letter nad arrow half of your key board and 2 keys from the num pad. If you want to fix that you can use both sides and play a spread style. For example use z for the left arrow x for the down arrow. num pad key number 1 for up and num pad key 2 for right. all four keys will the register at once. This makes hte tocatta en Fugue stepfile alot easier since it has alot of the quad jumps and freezes.