diff --git a/bazaar/Functions4U/Functions4U.h b/bazaar/Functions4U/Functions4U.h
index 8fbc0a8d1..1e60612a5 100644
--- a/bazaar/Functions4U/Functions4U.h
+++ b/bazaar/Functions4U/Functions4U.h
@@ -255,6 +255,11 @@ template<class T>
 inline T pow3(T a) {return a*a*a;}
 template<class T>
 inline T pow4(T a) {return pow2(pow2(a));}
+template<class T>
+inline T fround(T x, int numdec) {
+	int64 mult = 10*numdec;
+	return T(int64(x*mult + .5))/mult;	
+}
 template <class T> 
 inline bool Between(const T& val, const T& min, const T& max) { 
 	return val >= min && val <= max;
@@ -667,6 +672,17 @@ void Shuffle(C &data, int randomSeed = Null) {
 	ShuffleDescending(data, generator);	
 }
 
+template <class T>
+bool Equal(const T& a, const T& b, const T& ratio) {
+	if (a == 0)
+		return b <= ratio;
+	if (b == 0)
+		return a <= ratio;
+	if(abs((a - b)/b) <= ratio) 
+		return true;
+	return false;
+}
+
 template <class Range, class V>
 void FindAdd(Range& r, const V& value, int from = 0) {
 	for(int i = from; i < r.GetCount(); i++)
@@ -675,6 +691,14 @@ void FindAdd(Range& r, const V& value, int from = 0) {
 	r.Add(value);
 }
 
+template <class Range, class V>
+void FindAddRatio(Range& r, const V& value, const V& ratio, int from = 0) {
+	for(int i = from; i < r.GetCount(); i++)
+		if(Equal(r[i], value, ratio)) 
+			return;
+	r.Add(value);
+}
+
 template <class Range, class V>
 int FindIndexDelta(const Range& r, const V& value, const V& delta, int from = 0)
 {
@@ -687,22 +711,36 @@ int FindIndexDelta(const Range& r, const V& value, const V& delta, int from = 0)
 template <class Range, class V>
 int FindIndexRatio(const Range& r, const V& value, const V& ratio, int from = 0)
 {
-	for(int i = from; i < r.GetCount(); i++)
-		if(abs((r[i] - value)/value) <= ratio) 
+	for(int i = from; i < r.GetCount(); i++) {
+		if (Equal(r[i], value, ratio))
 			return i;
+	}
 	return -1;
 }
 
-template <class Range>
-bool Compare(Range& a, Range& b, int from = 0) {
+template <class Range, class V>
+bool Compare(const Range& a, const Range& b, const V& ratio = 0) {
 	if (a.GetCount() != b.GetCount())
 		return false;
-	for(int i = from; i < a.GetCount(); i++)
-		if(a[i] != b[i]) 
+	for(int i = 0; i < a.GetCount(); i++) {
+		V div = (b[i] != 0) ? b[i] : (a[i] != 0 ? a[i] : 1);
+		if(abs(a[i] - b[i])/div > ratio) 
 			return false;
+	}
 	return true;
 }
 
+template <class Range>
+String ToString(const Range& a) {
+	String ret;
+	for(int i = 0; i < a.GetCount(); i++) {
+		if (i > 0)
+			ret << ";";
+		ret << a[i]; 
+	}
+	return ret;
+}
+
 class RealTimeStop {  
 typedef RealTimeStop CLASSNAME;
 public:
diff --git a/bazaar/Functions4U/Functions4U.upp b/bazaar/Functions4U/Functions4U.upp
index 0520985f1..d04f0709e 100644
--- a/bazaar/Functions4U/Functions4U.upp
+++ b/bazaar/Functions4U/Functions4U.upp
@@ -46,3 +46,4 @@ file
 	Html/htmld.h,
 	Copying;
 
+ spellcheck_comments "EN-GB"
\ No newline at end of file
diff --git a/bazaar/Functions4U/Functions4U_Gui.cpp b/bazaar/Functions4U/Functions4U_Gui.cpp
index 746828786..b1dde9e55 100644
--- a/bazaar/Functions4U/Functions4U_Gui.cpp
+++ b/bazaar/Functions4U/Functions4U_Gui.cpp
@@ -193,5 +193,26 @@ ConsoleOutput::~ConsoleOutput() {
 #endif
 }
 
+void ArrayCtrlWhenBar(Bar &menu, ArrayCtrl &array) {
+	menu.Add(t_("Select all"), Null, [&] {ArrayCtrlRowSelect(array);})
+		.Key(K_CTRL_A).Help(t_("Select all rows"));
+								
+	int count = array.GetSelectCount();
+	if (count == 0)
+		menu.Add(t_("No row selected"), Null, Null).Enable(false).Bold(true);
+	else {
+		menu.Add(Format(t_("Selected %d rows"), count), Null, Null).Enable(false).Bold(true);
+		menu.Add(t_("Copy"), Null, [&] {ArrayCtrlRowCopy(array, false);})
+			.Key(K_CTRL_C).Help(t_("Copy selected rows to clipboard"));
+	}
+}
+
+void ArrayCtrlRowCopy(ArrayCtrl &array, bool header) {
+	array.SetClipboard(true, header);
+}
+
+void ArrayCtrlRowSelect(ArrayCtrl &array) {
+	array.Select(0, array.GetCount(), true);
+}
 
 #endif
\ No newline at end of file
diff --git a/bazaar/Functions4U/Functions4U_Gui.h b/bazaar/Functions4U/Functions4U_Gui.h
index 45bdc7d82..2a1c4f698 100644
--- a/bazaar/Functions4U/Functions4U_Gui.h
+++ b/bazaar/Functions4U/Functions4U_Gui.h
@@ -106,4 +106,8 @@ private:
 #endif
 };
 
+void ArrayCtrlWhenBar(Bar &menu, ArrayCtrl &array);
+void ArrayCtrlRowCopy(ArrayCtrl &array, bool header);
+void ArrayCtrlRowSelect(ArrayCtrl &array);
+
 #endif