src/main/java/ch/psi/mxsc/ControllerRT.java

@@ -39,6 +39,10 @@ public class ControllerRT  extends Controller{
         super.onStateChange(state, former);
        }
     */
+     
+     public Boolean isRoomTempEnabled() {
+         return false;
+     }
     final DeviceListener basePlateListener = new DeviceAdapter() {
         @Override
         public void onValueChanged(Device device, Object value, Object former) {

src/main/java/ch/psi/mxsc/MainPanel.java

@@ -82,6 +82,7 @@ public class MainPanel extends Panel {
             panelLegend.setVisible(false);
             panelLN2Level.setVisible(false);
             panelDisplayMode.setVisible(false);
+            panelDatamatrix.setVisible(false);
         }
 
         ((DefaultTableModel)tablePucks.getModel()).setNumRows(BasePlate.numberOfPucks);