last ...

Libraries/x-saherelm.common.lib.mq5

@@ -6773,6 +6773,52 @@ double GetFibonacciLevel(
     return result;
 }
 
+//
+double GetFibonacciLevel(
+    double mUp,
+    double mDown,
+    ENUM_X_FIBO_LEVELS mLevel,
+    ENUM_X_DIRECTION mForDir //
+)
+{
+    //
+    double result = 0;
+
+    //
+    double levelValue = GetFiboLevelValue(mLevel);
+
+    //
+    bool isValid =
+        //
+        mUp > 0 &&
+        mDown > 0 &&
+        levelValue > 0 &&
+        mUp > mDown &&
+        HasDirection(mForDir)
+        //
+        ;
+    if (!isValid)
+    {
+        return result;
+    }
+
+    //
+    bool isBullish = IsBullish(mForDir);
+
+    //
+    double ling = mUp - mDown;
+    double pLevel = (ling / 100) * (levelValue * 100);
+
+    //
+    result =
+        isBullish
+            ? mUp - pLevel
+            : mDown + pLevel;
+
+    //
+    return result;
+}
+
 //
 // Method 1
 // Normalize between 1 and 0 ...

Libraries/x-saherelm.x-poi.lib.mq5

@@ -6023,7 +6023,7 @@ struct XBoxZone
             lower > 0 &&
             from < to &&
             IsValid(to) &&
-            upper > lower &&
+            upper >= lower &&
             IsValid(from) &&
             IsValid(symbol) &&
             IsValid(period)