rem: QStringList ids = KMIdentity::identities(); QComboBox *cbx = aParent->createCombo( &ids, id );  return cbx;
add: QLineEdit* edt; edt = aParent->createEdit(mTo); return edt;
context: QWidget* KMFilterActionIdentity::createParamWidget(KMGFilterDlg* aParent){  QStringList ids = KMIdentity::identities();  QComboBox *cbx = aParent->createCombo( &ids, id );  return cbx;}