_sizer->Add (_mapping, 1, wxEXPAND | wxALL, 6);
_description = new StaticText (this, wxT(" \n"), wxDefaultPosition, wxDefaultSize);
_sizer->Add (_mapping, 1, wxEXPAND | wxALL, 6);
_description = new StaticText (this, wxT(" \n"), wxDefaultPosition, wxDefaultSize);