diff --git a/.github/workflows/compile.yml b/.github/workflows/compile.yml
index ca47653..ea90a50 100644
--- a/.github/workflows/compile.yml
+++ b/.github/workflows/compile.yml
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           path: Include/EA31337-classes
-          ref: v3.000.1
+          ref: v3.000-dev
           repository: EA31337/EA31337-classes
       - name: Compile (build 2361)
         uses: fx31337/mql-compile-action@master
diff --git a/Oscillators/SuperSlope.mq5.fixme b/Oscillators/SuperSlope.mq5
similarity index 51%
rename from Oscillators/SuperSlope.mq5.fixme
rename to Oscillators/SuperSlope.mq5
index 8d7c8bc..b0e73a8 100644
--- a/Oscillators/SuperSlope.mq5.fixme
+++ b/Oscillators/SuperSlope.mq5
@@ -41,7 +41,46 @@
 #define extern input
 #define Bars (ChartStatic::iBars(_Symbol, _Period))
 #define Bid (SymbolInfoStatic::GetBid(_Symbol))
-#define TimeDayOfWeek (DateTime::DateOfWeek())
+#define TimeDayOfWeek DateTimeStatic::DayOfWeek
+
+int WindowFirstVisibleBar(const long chart_ID = 0) {
+  long result = -1;
+
+  ResetLastError();
+
+  if (!ChartGetInteger(chart_ID, CHART_FIRST_VISIBLE_BAR, 0, result)) {
+    Print(__FUNCTION__ + ", Error Code = ", GetLastError());
+  }
+
+  return (int)result;
+}
+
+int WindowBarsPerChart() {
+  return (int)ChartGetInteger(0, CHART_VISIBLE_BARS, 0);
+}
+
+int ObjectFind(string name) { return ObjectFind(0, name); }
+
+bool ObjectSetText(string name, string text, int font_size, string font = "",
+                   color text_color = CLR_NONE) {
+  int tmpObjType = (int)ObjectGetInteger(0, name, OBJPROP_TYPE);
+  if (tmpObjType != OBJ_LABEL && tmpObjType != OBJ_TEXT)
+    return (false);
+  if (StringLen(text) > 0 && font_size > 0) {
+    if (ObjectSetString(0, name, OBJPROP_TEXT, text) == true &&
+        ObjectSetInteger(0, name, OBJPROP_FONTSIZE, font_size) == true) {
+      if ((StringLen(font) > 0) &&
+          ObjectSetString(0, name, OBJPROP_FONT, font) == false)
+        return (false);
+      if (text_color != CLR_NONE &&
+          ObjectSetInteger(0, name, OBJPROP_COLOR, text_color) == false)
+        return (false);
+      return (true);
+    }
+    return (false);
+  }
+  return (false);
+}
 
 // Define global functions.
 #undef DoubleToStr
@@ -57,6 +96,33 @@ int WindowsTotal(const long _cid = 0) {
   }
   return (int)result;
 }
+int WindowOnDropped() { return ChartWindowOnDropped(); }
+int WindowFind(string name) {
+  int window = -1;
+  if ((ENUM_PROGRAM_TYPE)MQLInfoInteger(MQL_PROGRAM_TYPE) ==
+      PROGRAM_INDICATOR) {
+    window = ChartWindowFind();
+  } else {
+    window = ChartWindowFind(0, name);
+    if (window == -1)
+      Print(__FUNCTION__ + "(): Error = ", GetLastError());
+  }
+  return (window);
+}
+
+// Following methods are only valid when used in MQL4 code.
+string StringTrimLeftMQL4(string text) {
+  StringTrimLeft(text);
+  return text;
+}
+
+string StringTrimRightMQL4(string text) {
+  StringTrimRight(text);
+  return text;
+}
+
+#define StringTrimLeft StringTrimLeftMQL4
+#define StringTrimRight StringTrimRightMQL4
 
 // Includes the main file.
 #include "SuperSlope.mq4"