ProcessorBox processor_box;
GainMeter gpm;
PannerUI panners;
+ Gtk::ToggleButton _mono_button;
Gtk::Table button_table;
Gtk::Table middle_button_table;
void comment_editor_done_editing();
void setup_comment_editor ();
void comment_button_clicked ();
+ void mono_button_clicked ();
Gtk::Button group_button;
Gtk::Label group_label;