diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7046114..8bb49ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,8 +2,8 @@ cmake_minimum_required(VERSION 3.0)
 cmake_policy(SET CMP0017 NEW) # need include() with .cmake
 project(qad)
 set(qad_MAJOR    1)
-set(qad_MINOR    12)
-set(qad_REVISION 1)
+set(qad_MINOR    13)
+set(qad_REVISION 0)
 set(qad_SUFFIX   )
 set(qad_COMPANY  SHS)
 set(qad_DOMAIN   org.SHS)
diff --git a/libs/graphic/graphic.cpp b/libs/graphic/graphic.cpp
index 7a6b00b..55c6109 100644
--- a/libs/graphic/graphic.cpp
+++ b/libs/graphic/graphic.cpp
@@ -647,6 +647,11 @@ void Graphic::setGraphicsDataRaw(const QByteArray & ba) {
 }
 
 
+void Graphic::setFloatingAxisEnabled(bool on) {
+	ui->checkGuides->setChecked(on);
+}
+
+
 void Graphic::setButtons(Graphic::Buttons b) {
 	buttons_ = b;
 	ui->buttonAutofit->setVisible(b.testFlag(Autofit));
diff --git a/libs/graphic/graphic.h b/libs/graphic/graphic.h
index 25d0800..5aca02f 100644
--- a/libs/graphic/graphic.h
+++ b/libs/graphic/graphic.h
@@ -297,6 +297,7 @@ public slots:
 	void setGraduationSteps(double sx, double sy) {gridx = sx; gridy = sy; if (aupdate) update();}
 	void setAxisType(AxisType t) {axis_type_x = t; if (aupdate) update();}
 	void setFloatingAxisType(FloatingAxisType t) {floating_axis_type = t; setGuidesCursor(); if (aupdate) update();}
+	void setFloatingAxisEnabled(bool on);
 
 	void addPoint(const QPointF & p, int graphic, bool update_ = true);
 	void addPoint(const QPointF & p, bool update = true) {addPoint(p, curGraphic, update);}
diff --git a/libs/widgets/qcodeedit.cpp b/libs/widgets/qcodeedit.cpp
index e6ad0ff..b9bb956 100644
--- a/libs/widgets/qcodeedit.cpp
+++ b/libs/widgets/qcodeedit.cpp
@@ -10,6 +10,7 @@
 #include <QTextBlock>
 #include <QAction>
 #include <QApplication>
+#include <QDesktopServices>
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
 #  include <QWindow>
 #endif
@@ -58,7 +59,7 @@ QCodeEdit::QCodeEdit(QWidget * parent): QWidget(parent) {
 	}
 	lbl_help[lhF1]->setIcon(QIcon(":/icons/f1.png"));
 	lbl_help[lhF1]->setText(tr("Press F1 for details"));
-	lbl_help[lhF1]->setVisible(false);
+	help_visible = true;
 	completer = new QCodeEditCompleter();
 
 	ui->textCode->setCursorWidth(qMax<int>(qRound(fontHeight() / 10.), 1));
@@ -117,6 +118,8 @@ QCodeEdit::QCodeEdit(QWidget * parent): QWidget(parent) {
 	addAction(a);*/
 
 	connect(completer, SIGNAL(itemDoubleClicked(QTreeWidgetItem * ,int)), this, SLOT(commitCompletition()));
+	connect(completer, SIGNAL(commit()), this, SLOT(commitCompletition()));
+	connect(completer, SIGNAL(gotoHRef(QCodeEdit::ACEntry)), this, SLOT(gotoHelpHRef(QCodeEdit::ACEntry)));
 	connect(ui->textCode->verticalScrollBar(), SIGNAL(valueChanged(int)), ui->textLines->verticalScrollBar(), SLOT(setValue(int)));
 	connect(ui->textCode->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideHelp()));
 	connect(ui->textCode, SIGNAL(textChanged()), this, SLOT(textEdit_textChanged()));
@@ -237,7 +240,12 @@ bool QCodeEdit::showLineNumbers() const {
 
 
 void QCodeEdit::setHelpHintVisible(bool on) {
-	lbl_help[lhF1]->setVisible(on);
+	help_visible = on;
+}
+
+
+bool QCodeEdit::isHelpHintVisible() const {
+	return help_visible;
 }
 
 
@@ -436,10 +444,11 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 			QKeyEvent * ke;
 			QChar kc(0);
 			switch (e->type()) {
-			case QEvent::ToolTip: {
-				QTextCursor tc = ui->textCode->cursorForPosition(((QHelpEvent*)e)->pos());
-				tc.select(QTextCursor::WordUnderCursor);
-				raiseHelp(tc);
+			case QEvent::ToolTip:
+				if (completer->isHidden()) {
+					QTextCursor tc = ui->textCode->cursorForPosition(((QHelpEvent*)e)->pos());
+					tc.select(QTextCursor::WordUnderCursor);
+					raiseHelp(tc);
 				}
 				break;
 			case QEvent::KeyPress:
@@ -534,6 +543,10 @@ bool QCodeEdit::eventFilter(QObject * o, QEvent * e) {
 				case Qt::Key_Control:
 					showLink();
 					break;
+				case Qt::Key_F1:
+					if (widget_help->isVisible())
+						gotoHelpHRef(help_entry);
+					break;
 				default: break;
 				}
 				if (!ke->text().isEmpty())
@@ -1161,6 +1174,7 @@ void QCodeEdit::raiseHelp(QTextCursor tc, int arg) {
 	applyExtraSelection();
 	//tc.movePosition(QTextCursor::StartOfWord, QTextCursor::MoveAnchor);
 	lbl_help[lhMain]->setFont(font());
+	lbl_help[lhF1]->setVisible(!e.help_href.isEmpty() && help_visible);
 	qApp->processEvents();
 	widget_help->adjustSize();
 	widget_help->resize(widget_help->sizeHint());
@@ -1178,13 +1192,21 @@ void QCodeEdit::raiseHelp(QTextCursor tc, int arg) {
 	widget_help->move(ui->textCode->viewport()->mapToGlobal(whp));
 	widget_help->show();
 	widget_help->raise();
+	help_entry = e;
 	cursor_scope = scope.first;
 	cursor_scope << scope.second;
 	//qDebug() << "tooltip" << st;
 }
 
 
+void QCodeEdit::gotoHelpHRef(QCodeEdit::ACEntry e) {
+	if (e.help_href.isEmpty()) return;
+	QDesktopServices::openUrl(e.help_href);
+}
+
+
 void QCodeEdit::hideHelp() {
+	help_entry = ACEntry();
 	widget_help->hide();
 	es_cursor.cursor = QTextCursor();
 	cursor_scope.clear();
@@ -1313,7 +1335,7 @@ void QCodeEdit::invokeAutoCompletition(bool force) {
 		hideHelp();
 		return;
 	}
-	if (word_complet) acl << wordsCompletitionList(scope.second);
+	if (word_complete) acl << wordsCompletitionList(scope.second);
 	QFont bf(font());
 	bf.setBold(true);
 	foreach (const ACSection & ac, acl) {
@@ -1498,3 +1520,11 @@ void QCodeEdit::on_buttonReplaceAll_clicked() {
 	_replacing = false;
 	textEdit_textChanged();
 }
+
+
+
+
+QString QCodeEdit::ACEntry::declaration() const {
+	if (declaration_pos < 0 || declaration_file.isEmpty()) return QString();
+	return (declaration_file + ": %1").arg(declaration_pos);
+}
diff --git a/libs/widgets/qcodeedit.h b/libs/widgets/qcodeedit.h
index 67a6fc3..9521df0 100644
--- a/libs/widgets/qcodeedit.h
+++ b/libs/widgets/qcodeedit.h
@@ -58,10 +58,16 @@ public:
 		ACEntry(const QString & t = QString(), const QString & n = QString(), const QString & h = QString()):
 			type(t), name(n), hint(h) {declaration_pos = -1;}
 		bool isNull() const {return type.isEmpty() && name.isEmpty();}
+		QString declaration() const;
+		ACEntry & addHint(QString h) {hint = h; return *this;}
+		ACEntry & addHelpHRef(QUrl h) {help_href = h; return *this;}
+		ACEntry & addCustomData(QVariant d) {custom_data = d; return *this;}
 		QString type;
 		QString name;
 		QString hint;
 		int declaration_pos;
+		QString declaration_file;
+		QUrl help_href;
 		QVariant custom_data;
 	};
 
@@ -80,6 +86,7 @@ public:
 	bool showSpaces() const {return spaces_;}
 	bool showLineNumbers() const;
 	void setHelpHintVisible(bool on);
+	bool isHelpHintVisible() const;
 
 	void setEditorFont(QFont f);
 	QFont editorFont() const;
@@ -88,7 +95,7 @@ public:
 	
 	void registerAutoCompletitionClass(int id, ACClassType ac_class, const QString & name, const QIcon & icon = QIcon());
 	
-	bool wordCompletitionEnabled() const {return word_complet;}
+	bool wordCompletitionEnabled() const {return word_complete;}
 
 protected:
 	typedef QPair<QString, QString> StringsPair;
@@ -136,10 +143,10 @@ private:
 	QList<QTextEdit::ExtraSelection> es_selected, es_custom, es_brackets, es_search_list;
 	QMap<int, ACClass> ac_classes;
 	QStringList cursor_scope;
-	ACEntry link_entry;
+	ACEntry link_entry, help_entry;
 	int prev_lc, auto_comp_pl, timer, cur_search_ind, pos_press, pos_el_press;
 	bool spaces_, _ignore_focus_out, _first, _destructor, _replacing;
-	bool word_complet;
+	bool word_complete, help_visible;
 	
 	bool eventFilter(QObject * o, QEvent * e) override;
 	void showEvent(QShowEvent * ) override;
@@ -155,6 +162,7 @@ private:
 
 private slots:
 	void _activateLink(QCodeEdit::ACEntry e) {linkClicked(e);}
+	void gotoHelpHRef(QCodeEdit::ACEntry e);
 	void syncScrolls();
 	void scrollUp();
 	void scrollDown();
@@ -195,7 +203,7 @@ public slots:
 	void searchNext(bool next = true);
 	void searchPrevious();
 	void hideSearch();
-	void setWordCompletitionEnabled(bool on) {word_complet = on;}
+	void setWordCompletitionEnabled(bool on) {word_complete = on;}
 
 signals:
 	void textChanged();
diff --git a/libs/widgets/qcodeedit_completer_p.cpp b/libs/widgets/qcodeedit_completer_p.cpp
index 1167e9b..412a0d6 100644
--- a/libs/widgets/qcodeedit_completer_p.cpp
+++ b/libs/widgets/qcodeedit_completer_p.cpp
@@ -65,6 +65,7 @@ void QCodeEditCompleter::addItems(QFont f, const QCodeEdit::ACClass & cl, const
 		ni->setIcon(0, cl.icon);
 		ni->setText(0, s.type);
 		ni->setText(1, s.name);
+		ni->setData(0, Qt::UserRole, s.help_href);
 		addTopLevelItem(ni);
 	}
 }
@@ -95,6 +96,26 @@ QString QCodeEditCompleter::currentValue() const {
 }
 
 
+void QCodeEditCompleter::keyPressEvent(QKeyEvent * e) {
+	switch (e->key()) {
+	case Qt::Key_Escape:
+		hide();
+		break;
+	case Qt::Key_Return:
+		emit commit();
+		break;
+	case Qt::Key_F1:
+		if (currentItem()) {
+			QString href = currentItem()->data(0, Qt::UserRole).toString();
+			emit gotoHRef(QCodeEdit::ACEntry().addHelpHRef(href));
+		}
+		break;
+	default: break;
+	}
+	QTreeWidget::keyPressEvent(e);
+}
+
+
 void QCodeEditCompleter::adjust() {
 	int sz = sizeHint().width();
 	resize(sz, fontHeight() * 16);
diff --git a/libs/widgets/qcodeedit_completer_p.h b/libs/widgets/qcodeedit_completer_p.h
index 3afcfa0..f72d56d 100644
--- a/libs/widgets/qcodeedit_completer_p.h
+++ b/libs/widgets/qcodeedit_completer_p.h
@@ -40,11 +40,14 @@ public:
 	QString currentValue() const;
 
 private:
+	void keyPressEvent(QKeyEvent * e) override;
 
 private slots:
 	void adjust();
 
 signals:
+	void commit();
+	void gotoHRef(QCodeEdit::ACEntry e);
 	
 };