This example JavaScript function is designed to look for Fn=xxxxxx patterns on specified screen lines. Copy and paste the attached functions into your SHARED script object, file UF_SY420_RTS.JS.
  
    // Apply Fn=xxxxxx function key patterns to buttons and function keys enabled on the current RAMP-TS screen  
 
    apply5250FunctionKeyPatterns : function(iLowRow,iHighRow,aForceEnable,aForceDisable)
    \{
       if (GLOBAL_oAXESInterface == null) return; // No AXES interface
       if (GLOBAL_oCurrentTSform == null) return; // No current AXES form
       if (oGLOBAL_CurrentFORM == null)   return; // No RAMP-TS definition for the form   
       
       TRACE("SHARED.applyFunctionKeyPatterns started");
                     
       if (iHighRow == null) iHighRow = iLowRow;       // default is same as low row
              
       var allkeys    = ""; 
       var typeOUTPUT = GLOBAL_oAXESInterface.Element.TYPE_OUTPUT;
       var oForm      = oGLOBAL_CurrentFORM;
         
       // Disable all function keys and buttons to start with. 
       // Note that the function keys (oForm.vFKERTS) and the buttons (oForm.vFKEVLF) are BOTH disabled here
       
       TRACE("SHARED.applyFunctionKeyPatterns is disabling all function keys and all buttons");
       for (var i = 0; i < oForm.vFKEVLF.length; i++) \{ if (oForm.vFKEVLF.charAt(i) != "0") oForm.vFKEVLF = InsertString(oForm.vFKEVLF,"0",i); \}
       for (var i = 0; i < oForm.vFKERTS.length; i++) \{ if (oForm.vFKERTS.charAt(i) != "0") oForm.vFKERTS = InsertString(oForm.vFKERTS,"0",i); \}
                                                      
       // Strip all output fields on the specified lines to create a long string of function keys strings 
                
       for (var iRow = iLowRow; iRow <= iHighRow; iRow++)
       \{
          var aAElement = GLOBAL_oCurrentTSform.getElementsByRow(iRow); 
          for (var i = 0; i < aAElement.length; i++)
          \{
             var oAXESElement = aAElement\[i\];
             if (oAXESElement.type == typeOUTPUT) \{ allkeys += " " + oAXESElement.getValue(); \}     
          \}
       \} 
 
       // This RegExp looks for strings of the form F1=XXXX (where "F" can be F, PF, FP, CF 
       // or Cmd) XXXX can be a string of any length terminating at more than one space, 
       // the end of the line or another instance of "F1=" (thats the ?= look ahead group).
       // All groups are forgotten (that's the ?:) except the function number and the XXXX text.
 
       var reFKey = /\b(?:F|PF|FP|CF|Cmd)(\d+)\[=-\](.*?)(?=(?:\b(?:F|PF|FP|CF|Cmd)\d+\[=-\])|\s\{2,\}|$)/gi;
 
       var fkeyMatch = reFKey.exec(allkeys);
       while (fkeyMatch != null) 
       \{ 
          var key = "F" + TRIM_RIGHT(fkeyMatch\[1\]);
          // Note that the function key and the button are both being enabled here 
          SETKEYENABLED(GLOBAL_oCurrentTSform.symbolicName,key,true,true);  
          fkeyMatch = reFKey.exec(allkeys);
       \}
                          
       // Enable any forced buttons. Note that the function key and the button are BOTH enabled 
              
       if (aForceEnable != null) 
       \{ 
          TRACE("SHARED.applyFunctionKeyPatterns is forcing the enablement of specified keys/buttons");
          for (var i = 0; i < aForceEnable.length; i++) \{ SETKEYENABLED(GLOBAL_oCurrentTSform.symbolicName,aForceEnable\[i\],true,true); \} 
       \}      
              
       // Disable any forced buttons. Note that the function key and the button are BOTH disabled 
              
       if (aForceDisable != null) 
       \{ 
          TRACE("SHARED.applyFunctionKeyPatterns is forcing the disablement of specified keys/buttons");
          for (var i = 0; i < aForceDisable.length; i++) \{ SETKEYENABLED(GLOBAL_oCurrentTSform.symbolicName,aForceDisable\[i\],false,false); \} 
       \}      
 
       // Finished   
 
       TRACE("SHARED.applyFunctionKeyPatterns ended");
                                       
    \}, // <--- Note the comma      
 
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