This fake idle status will set your computer as idle when you want, it's not quite as instant as Status Magic but other users will not be able to tell that you are not really idle (unlike other idle status programs).
You will need to install it to your Yahoo install directory (installer defaults to the default Yahoo install so most people can just click Next and Ok to everything)
You need to enable idle status in your Yahoo! Messenger preferences and set the idle time to 1min.
Run WackyB Yahoo Status Idle from your start menu, When you want to be idle click the 'Set Idle' button.
NOTE: This is NOT instant!... it can take up to 30 seconds for you status to change to idle (typical is 5-10 seconds).
To return to available status click the 'Clear Idle' button, This will revert back to Yahoo's idle detection and so you will not be shown as idle until 1min of you actually being idle.
The 'Keep Available' button can be used to override the Yahoo setting and keep you available even if you have idle enabled.