Index: trunk/src/org/openstreetmap/josm/actions/relation/AddSelectionToRelations.java =================================================================== --- trunk/src/org/openstreetmap/josm/actions/relation/AddSelectionToRelations.java (revision 9365) +++ trunk/src/org/openstreetmap/josm/actions/relation/AddSelectionToRelations.java (revision 9366) @@ -9,4 +9,6 @@ import java.util.LinkedList; +import javax.swing.JOptionPane; + import org.openstreetmap.josm.Main; import org.openstreetmap.josm.command.Command; @@ -15,4 +17,5 @@ import org.openstreetmap.josm.data.osm.OsmPrimitive; import org.openstreetmap.josm.data.osm.Relation; +import org.openstreetmap.josm.gui.Notification; import org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor; import org.openstreetmap.josm.gui.util.GuiHelper; @@ -43,4 +46,8 @@ if (!cmds.isEmpty()) { Main.main.undoRedo.add(new SequenceCommand(tr("Add selection to relation"), cmds)); + new Notification( + tr("Add selection to relation: Control every single relation to avoid damage!")) + .setIcon(JOptionPane.WARNING_MESSAGE) + .show();; } }