Msp::GLtk::Entry *ent_number;
Msp::GLtk::FunctionListData<R2C2::Track *> up_directions;
Msp::GLtk::Dropdown *drp_up_direction;
Msp::GLtk::Entry *ent_number;
Msp::GLtk::FunctionListData<R2C2::Track *> up_directions;
Msp::GLtk::Dropdown *drp_up_direction;