Price touches Supertrend

it is impossible to be revitted to the screen during market is there any possiblities in Pi to get a alert when price touches the supertrend or nearing the supertrend?

Refer this-

http://tradingqna.com/11693/can-anyone-provide-tradescript-code-for-supertrend-signal#a11716

I heard that no supertrend indicator in pi.if its not there whats the point in calling it a most advanced platform?