You can Copy & Paste the following code to ProScreen or you may either import the attached file into ProScreener.

// Constant definitions
 
// OverBought/OverSold tresholds
ONCE StocOB = 80                                              //80 - 20
ONCE StocOS = 100 - StocOB
 
// Stochastic parameters
ONCE Stoc1  = 5                                               //5
ONCE Stoc2  = 3                                               //3
ONCE Stoc3  = 3                                               //3  (average for the D line)
 
StocK       = Stochastic[Stoc1,Stoc2](close)                  //K line
StocD       = Average[Stoc3](StocK)                           //D line
 
CrossOB     = StocK CROSSES UNDER StocD AND StocK > StocOB    //Crossing occurred while K line is still OB
CrossOS     = StocK CROSSES OVER  StocD AND StocK < StocOS    //Crossing occurred while K line is still OS
 
Result = CrossOB OR (CrossOS * 2)
SCREENER[Result](Result AS "Cross")  //1=crossing while OB, 2=crossing while OS

This is a link to help import code, of cource you’ll have import the screener to ProScreener, not ProOrder (for automated Strategies)  or ProBuilder (for Indicators/Oscillators) https://www.prorealcode.com/import-export-prorealtime-code-platform/

I also attach 3 screenshots to help you import the .ITF file.

The last step step, not shown, is to select the file to import from the same folder where you saved it, usually the DOWNLOAD folder on Windows.

MyProScreener.itf Screener1.jpg Screener2.jpg Screener3.jpg