diff -r 334a114407cd -r 50461b01e30d src/RelpipeChartMainWindow.h
--- a/src/RelpipeChartMainWindow.h	Fri Jan 31 23:34:52 2020 +0100
+++ b/src/RelpipeChartMainWindow.h	Mon Jun 01 23:56:20 2020 +0200
@@ -43,6 +43,8 @@
 	void attribute(const string_t value);
 	void endOfPipe();
 	void setStatusMessage(string_t message);
+	void selectNextTab();
+	void selectPreviousTab();
 private:
 	Ui::RelpipeChartMainWindow widget;
 	QTabWidget* tabs = new QTabWidget(this);
@@ -50,4 +52,5 @@
 	RelpipeTableModel* currentModel;
 	RelpipeChartWidget* currentChartWidget;
 	QLabel* status = new QLabel();
+	void setupKeyboardShortcuts();
 };