Scanning for MA crossover on a STOCH RSI crossover

There are a few other threads in the scanning section which cover this technique and yes you will have to use the advanced scan engine.

Here's a blog article which describes in detail the technique.

http://stockcharts.com/articles/scanning/2011/08/question-is-it-possible-to-use-an-ema-of-an-indicator-in-a-scan-for-example-if-i-wanted-to-know-when-rsi5-is-above-a.html