diff --git a/sources/appl/Gui/MainWindows.cpp b/sources/appl/Gui/MainWindows.cpp
index f8d1ce8..a6d2860 100644
--- a/sources/appl/Gui/MainWindows.cpp
+++ b/sources/appl/Gui/MainWindows.cpp
@@ -293,7 +293,7 @@ const char *const ednEventPopUpFileSaveAs   = "edn-mainWindows-saveAsSelected";
 void MainWindows::onReceiveMessage(const ewol::EMessage& _msg) {
 	ewol::Windows::onReceiveMessage(_msg);
 	
-	APPL_INFO("Receive Event from the main windows: " << _msg );
+	APPL_VERBOSE("Receive Event from the main windows: " << _msg );
 	// open file Section ...
 	if (_msg.getMessage() == ednMsgGuiOpen) {
 		widget::FileChooser* tmpWidget = new widget::FileChooser();
diff --git a/sources/appl/Gui/TextViewer.h b/sources/appl/Gui/TextViewer.h
index 6740a1d..571984e 100644
--- a/sources/appl/Gui/TextViewer.h
+++ b/sources/appl/Gui/TextViewer.h
@@ -21,17 +21,7 @@
 #include <tuple>
 
 namespace appl {
-	class TextViewerPlugin;
-	class TextPluginCopy;
-	class TextPluginMultiLineTab;
-	class TextPluginAutoIndent;
-	class TextPluginHistory;
 	class TextViewer : public widget::WidgetScrooled {
-		friend class appl::TextViewerPlugin;
-		friend class appl::TextPluginCopy;
-		friend class appl::TextPluginMultiLineTab;
-		friend class appl::TextPluginAutoIndent;
-		friend class appl::TextPluginHistory;
 		private:
 			appl::GlyphPainting* m_paintingProperties; //!< element painting property
 			esize_t m_colorBackground;
@@ -86,8 +76,68 @@ namespace appl {
 			bool replace(const std::u32string& _data) {
 				return replace(to_u8string(_data));
 			}
+			/**
+			 * @brief Remove selected data ...
+			 */
 			void remove(void);
+			/**
+			 * @brief Remove selected data ... (No plugin call)
+			 */
+			void removeDirect(void) {
+				if (m_buffer==NULL) {
+					return;
+				}
+				m_buffer->removeSelection();
+			}
 			
+			/**
+			 * @brief copy data in the _data ref value.
+			 * @param[out] _data Output stream to copy.
+			 * @return true of no error occured.
+			 */
+			bool copy(std::string& _data) {
+				if (m_buffer==NULL) {
+					return false;
+				}
+				return m_buffer->copy(_data);
+			}
+			/**
+			 * @brief copy data in the _data ref value.
+			 * @param[out] _data Output stream to copy.
+			 * @param[in] _pos Position to add the data.
+			 * @param[in] _posEnd End position to end replace the data.
+			 */
+			void copy(std::string& _data, const appl::Buffer::Iterator& _pos, const appl::Buffer::Iterator& _posEnd) {
+				if (m_buffer==NULL) {
+					return;
+				}
+				m_buffer->copy(_data, _pos, _posEnd);
+			}
+			/**
+			 * @brief Write data at a specific position (No plugin call)
+			 * @param[in] _data Data to insert in the buffer
+			 * @param[in] _pos Position to add the data.
+			 * @return true if the write is done corectly
+			 */
+			bool writeDirect(const std::string& _data, const appl::Buffer::Iterator& _pos) {
+				if (m_buffer==NULL) {
+					return false;
+				}
+				return m_buffer->write(_data, _pos);
+			}
+			/**
+			 * @brief Write data at a specific position (No plugin call)
+			 * @param[in] _data Data to insert in the buffer
+			 * @param[in] _pos Position to add the data.
+			 * @param[in] _posEnd End position to end replace the data.
+			 * @return true if the write is done corectly
+			 */
+			bool replaceDirect(const std::string& _data, const appl::Buffer::Iterator& _pos, const appl::Buffer::Iterator& _posEnd) {
+				if (m_buffer==NULL) {
+					return false;
+				}
+				return m_buffer->replace(_data, _pos, _posEnd);
+			}
 			
 			appl::Buffer::Iterator getMousePosition(const vec2& _relativePos);
 			void mouseEventDouble(void);
@@ -163,7 +213,7 @@ namespace appl {
 			 * @param[in] _start Start position of the selection
 			 * @param[in] _stop Stop position of the selection (the curor is set at this position)
 			 */
-			virtual void select(appl::Buffer::Iterator& _start, appl::Buffer::Iterator& _stop) {
+			virtual void select(const appl::Buffer::Iterator& _start, const appl::Buffer::Iterator& _stop) {
 				if (m_buffer==NULL) {
 					return;
 				}
@@ -216,6 +266,17 @@ namespace appl {
 				}
 				return ret;
 			}
+			/**
+			 * @brief Get an iterator an an specific position
+			 * @param[in] _pos Requested position of the iterator.
+			 * @return The Iterator
+			 */
+			appl::Buffer::Iterator position(int64_t _pos) {
+				if (m_buffer==NULL) {
+					return appl::Buffer::Iterator();
+				}
+				return m_buffer->position(_pos);
+			}
 			/**
 			 * @brief Get the cursor position.
 			 * @return The iterator on the cursor position
diff --git a/sources/appl/TextPluginAutoIndent.cpp b/sources/appl/TextPluginAutoIndent.cpp
index 4f0850b..f42a278 100644
--- a/sources/appl/TextPluginAutoIndent.cpp
+++ b/sources/appl/TextPluginAutoIndent.cpp
@@ -38,11 +38,11 @@ bool appl::TextPluginAutoIndent::onEventEntry(appl::TextViewer& _textDrawer,
 	if (_event.getSpecialKey().isSetShift() == true) {
 		return false;
 	}
-	appl::Buffer::Iterator startLine = _textDrawer.m_buffer->cursor();
-	if (_textDrawer.m_buffer->hasTextSelected() == true) {
-		startLine = _textDrawer.m_buffer->selectStart();
+	appl::Buffer::Iterator startLine = _textDrawer.cursor();
+	if (_textDrawer.hasTextSelected() == true) {
+		startLine = _textDrawer.selectStart();
 	}
-	startLine = _textDrawer.m_buffer->getStartLine(startLine);
+	startLine = _textDrawer.getStartLine(startLine);
 	std::string data = "\n";
 	
 	
diff --git a/sources/appl/TextPluginCopy.cpp b/sources/appl/TextPluginCopy.cpp
index 60c1ede..06c0b23 100644
--- a/sources/appl/TextPluginCopy.cpp
+++ b/sources/appl/TextPluginCopy.cpp
@@ -21,12 +21,12 @@ appl::TextPluginCopy::TextPluginCopy(void) {
 
 void appl::TextPluginCopy::onPluginEnable(appl::TextViewer& _textDrawer) {
 	// add event :
-	_textDrawer.registerMultiCast(ednMsgGuiCopy);
-	_textDrawer.registerMultiCast(ednMsgGuiPaste);
-	_textDrawer.registerMultiCast(ednMsgGuiCut);
-	_textDrawer.shortCutAdd("ctrl+x", ednMsgGuiCut,   "STD");
-	_textDrawer.shortCutAdd("ctrl+c", ednMsgGuiCopy,  "STD");
-	_textDrawer.shortCutAdd("ctrl+v", ednMsgGuiPaste, "STD");
+	_textDrawer.ext_registerMultiCast(ednMsgGuiCopy);
+	_textDrawer.ext_registerMultiCast(ednMsgGuiPaste);
+	_textDrawer.ext_registerMultiCast(ednMsgGuiCut);
+	_textDrawer.ext_shortCutAdd("ctrl+x", ednMsgGuiCut,   "STD");
+	_textDrawer.ext_shortCutAdd("ctrl+c", ednMsgGuiCopy,  "STD");
+	_textDrawer.ext_shortCutAdd("ctrl+v", ednMsgGuiPaste, "STD");
 }
 
 void appl::TextPluginCopy::onPluginDisable(appl::TextViewer& _textDrawer) {
@@ -40,9 +40,9 @@ bool appl::TextPluginCopy::onReceiveMessage(appl::TextViewer& _textDrawer,
 	}
 	if (    _msg.getMessage() == ednMsgGuiCopy
 	     || _msg.getMessage() == ednMsgGuiCut) {
-		if (_textDrawer.m_buffer != NULL) {
+		if (_textDrawer.hasBuffer() == true) {
 			std::string value;
-			_textDrawer.m_buffer->copy(value);
+			_textDrawer.copy(value);
 			if (value.size() != 0) {
 				ewol::clipBoard::set(ewol::clipBoard::clipboardStd, value);
 			}
@@ -52,7 +52,7 @@ bool appl::TextPluginCopy::onReceiveMessage(appl::TextViewer& _textDrawer,
 		}
 		return true;
 	} else if (_msg.getMessage() == ednMsgGuiPaste) {
-		if (_textDrawer.m_buffer != NULL) {
+		if (_textDrawer.hasBuffer() == true) {
 			ewol::clipBoard::request(ewol::clipBoard::clipboardStd);
 		}
 		return true;
diff --git a/sources/appl/TextPluginHistory.cpp b/sources/appl/TextPluginHistory.cpp
index 53632ac..cec5d30 100644
--- a/sources/appl/TextPluginHistory.cpp
+++ b/sources/appl/TextPluginHistory.cpp
@@ -29,10 +29,10 @@ appl::TextPluginHistory::~TextPluginHistory(void) {
 
 void appl::TextPluginHistory::onPluginEnable(appl::TextViewer& _textDrawer) {
 	// add event :
-	_textDrawer.registerMultiCast(ednMsgGuiRedo);
-	_textDrawer.registerMultiCast(ednMsgGuiUndo);
-	_textDrawer.shortCutAdd("ctrl+z", ednMsgGuiUndo);
-	_textDrawer.shortCutAdd("ctrl+shift+z", ednMsgGuiRedo);
+	_textDrawer.ext_registerMultiCast(ednMsgGuiRedo);
+	_textDrawer.ext_registerMultiCast(ednMsgGuiUndo);
+	_textDrawer.ext_shortCutAdd("ctrl+z", ednMsgGuiUndo);
+	_textDrawer.ext_shortCutAdd("ctrl+shift+z", ednMsgGuiRedo);
 }
 
 void appl::TextPluginHistory::onPluginDisable(appl::TextViewer& _textDrawer) {
@@ -55,9 +55,9 @@ bool appl::TextPluginHistory::onReceiveMessage(appl::TextViewer& _textDrawer,
 		appl::History *tmpElement = m_redo[m_redo.size()-1];
 		m_redo.pop_back();
 		m_undo.push_back(tmpElement);
-		_textDrawer.m_buffer->replace(tmpElement->m_addedText,
-		                              _textDrawer.m_buffer->position(tmpElement->m_posAdded),
-		                              _textDrawer.m_buffer->position(tmpElement->m_endPosRemoved) );
+		_textDrawer.replaceDirect(tmpElement->m_addedText,
+		                          _textDrawer.position(tmpElement->m_posAdded),
+		                          _textDrawer.position(tmpElement->m_endPosRemoved) );
 		
 		return true;
 	} else if (_msg.getMessage() == ednMsgGuiUndo) {
@@ -71,9 +71,9 @@ bool appl::TextPluginHistory::onReceiveMessage(appl::TextViewer& _textDrawer,
 		appl::History *tmpElement = m_undo[m_undo.size()-1];
 		m_undo.pop_back();
 		m_redo.push_back(tmpElement);
-		_textDrawer.m_buffer->replace(tmpElement->m_removedText,
-		                              _textDrawer.m_buffer->position(tmpElement->m_posAdded),
-		                              _textDrawer.m_buffer->position(tmpElement->m_endPosAdded) );
+		_textDrawer.replaceDirect(tmpElement->m_removedText,
+		                          _textDrawer.position(tmpElement->m_posAdded),
+		                          _textDrawer.position(tmpElement->m_endPosAdded) );
 		
 		return true;
 	}
@@ -121,13 +121,13 @@ bool appl::TextPluginHistory::onWrite(appl::TextViewer& _textDrawer,
 		tmpElement->m_posAdded = (int64_t)_pos;
 		tmpElement->m_endPosRemoved = (int64_t)_pos;
 	}
-	_textDrawer.m_buffer->write(_data, _pos);
+	_textDrawer.writeDirect(_data, _pos);
 	if (tmpElement != NULL) {
-		tmpElement->m_endPosAdded = (int64_t)_textDrawer.m_buffer->cursor();
+		tmpElement->m_endPosAdded = (int64_t)_textDrawer.cursor();
 		clearRedo();
 		m_undo.push_back(tmpElement);
 	}
-	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.m_buffer->cursor());
+	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.cursor());
 	return true;
 }
 
@@ -143,15 +143,15 @@ bool appl::TextPluginHistory::onReplace(appl::TextViewer& _textDrawer,
 		tmpElement->m_posAdded = (int64_t)_pos;
 		tmpElement->m_addedText = _data;
 		tmpElement->m_endPosRemoved = (int64_t)_posEnd;
-		_textDrawer.m_buffer->copy(tmpElement->m_removedText, _pos, _posEnd);
+		_textDrawer.copy(tmpElement->m_removedText, _pos, _posEnd);
 	}
-	_textDrawer.m_buffer->replace(_data, _pos, _posEnd);
+	_textDrawer.replaceDirect(_data, _pos, _posEnd);
 	if (tmpElement != NULL) {
-		tmpElement->m_endPosAdded = (int64_t)_textDrawer.m_buffer->cursor();
+		tmpElement->m_endPosAdded = (int64_t)_textDrawer.cursor();
 		clearRedo();
 		m_undo.push_back(tmpElement);
 	}
-	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.m_buffer->cursor());
+	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.cursor());
 	return true;
 }
 
@@ -167,12 +167,12 @@ bool appl::TextPluginHistory::onRemove(appl::TextViewer& _textDrawer,
 		tmpElement->m_posAdded = (int64_t)_pos;
 		tmpElement->m_endPosAdded = tmpElement->m_posAdded;
 		tmpElement->m_endPosRemoved = (int64_t)_posEnd;
-		_textDrawer.m_buffer->copy(tmpElement->m_removedText, _pos, _posEnd);
+		_textDrawer.copy(tmpElement->m_removedText, _pos, _posEnd);
 		clearRedo();
 		m_undo.push_back(tmpElement);
 	}
-	_textDrawer.m_buffer->removeSelection();
-	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.m_buffer->cursor());
+	_textDrawer.removeDirect();
+	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.cursor());
 	return true;
 }
 
diff --git a/sources/appl/TextPluginMultiLineTab.cpp b/sources/appl/TextPluginMultiLineTab.cpp
index 64f4877..729ccb8 100644
--- a/sources/appl/TextPluginMultiLineTab.cpp
+++ b/sources/appl/TextPluginMultiLineTab.cpp
@@ -34,17 +34,17 @@ bool appl::TextPluginMultiLineTab::onEventEntry(appl::TextViewer& _textDrawer,
 	if (localValue != etk::UChar::Tabulation) {
 		return false;
 	}
-	if (_textDrawer.m_buffer->hasTextSelected() == false) {
+	if (_textDrawer.hasTextSelected() == false) {
 		return false;
 	}
-	appl::Buffer::Iterator itStart = _textDrawer.m_buffer->selectStart();
-	appl::Buffer::Iterator itStop = _textDrawer.m_buffer->selectStop();
+	appl::Buffer::Iterator itStart = _textDrawer.selectStart();
+	appl::Buffer::Iterator itStop = _textDrawer.selectStop();
 	// get the compleate section of the buffer :
-	itStart = _textDrawer.m_buffer->getStartLine(itStart);
-	itStop = _textDrawer.m_buffer->getEndLine(itStop);
+	itStart = _textDrawer.getStartLine(itStart);
+	itStop = _textDrawer.getEndLine(itStop);
 	// copy the curent data in a classicle string:
 	std::string data;
-	_textDrawer.m_buffer->copy(data, itStart, itStop);
+	_textDrawer.copy(data, itStart, itStop);
 	// TODO : Change this ...
 	bool m_useTabs = true;
 	int32_t m_tabDist = 4;
@@ -91,6 +91,6 @@ bool appl::TextPluginMultiLineTab::onEventEntry(appl::TextViewer& _textDrawer,
 	}
 	// Real replace of DATA :
 	_textDrawer.replace(data, itStart, itStop);
-	_textDrawer.m_buffer->setSelectionPos(itStart);
+	_textDrawer.select(itStart, itStart+data.size());
 	return true;
 }
\ No newline at end of file