Sin PVE macro

So I recently found out about autohotkey, and am currently using a simple macro. And I would like to know how to add some things.

Home::
{
Send, r
sleep, 1
Send, t
Sleep, 1
Send, f
}
return

What I would like to know is, What should I add to the code to make it when I press Home button the script starts (without needing to hold it down) and stops when I press it again or END button?
Is it also possible to make the script play, without it stopping when I press other buttons? to move for example

Well, you have to read the documentation for that.
Sample:[Only registered and activated users can see links. Click Here To Register...]

Now this is the issue here, The Syntax may look easy but implementation is confusing for starters like you.