Change period and arrows location

Please make able to change the position of the arrows to a better place like above the number line, and able to change the period to a better location like at the side if the comma and you move the space bar to the right, because always when I'm typing and other people maybe too, I press the period instead of the space key, and sometimes I press the left arrow button, making me write between 2 letters, this is very annoying.