add new steps to all tracks at once

include/bb_editor.h

@@ -56,6 +56,8 @@ public slots:
 	void stop();
 	void updatePosition();
 	void addAutomationTrack();
+	void addSteps();
+	void removeSteps();
 
 private:
 	virtual void keyPressEvent( QKeyEvent * _ke );

include/pattern.h

@@ -163,6 +163,7 @@ private:
 
 	friend class patternView;
 	friend class patternFreezeThread;
+	friend class bbEditor;
 
 } ;