rem: QWidget* KMFilterActionMove::createParamWidget(KMGFilterDlg* aParent)
add: QWidget* KMFilterActionExec::createParamWidget(KMGFilterDlg* aParent)
context: QWidget* KMFilterActionMove::createParamWidget(KMGFilterDlg* aParent){  QString name;  QComboBox* cbx;  QStringList str;  folders.clear();  kernel->folderMgr()->createFolderList( &str, &folders );  cbx = aParent->createFolderCombo( &str, &folders, mDest );  return cbx;}