myDlg->myElemGeomBtn->setEnabled( nbSelected == 1 );
myDlg->myNodeGeomList->clear();
myDlg->myNodeGeomBtn->setEnabled( nbSelected == 1 );
myDlg->myElemGeomBtn->setEnabled( nbSelected == 1 );
myDlg->myNodeGeomList->clear();
myDlg->myNodeGeomBtn->setEnabled( nbSelected == 1 );