thythyiszx iszx dfine.

;make x key function as szx key.
x::Send, sz{U+0078}
+x::Send, SZ{U+0058}

;make f key function as df key.
f::Send, d{U+0066}
+f::Send, D{U+0046}

;make h key function as thy key.
h::Send, t{U+0068}y
+h::Send, T{U+0048}Y

;make Insert key function as Backspace key.
$Insert::Send, {Backspace}