diff --git a/numass-control/cryotemp/src/main/java/inr/numass/cryotemp/PKT8MainViewController.java b/numass-control/cryotemp/src/main/java/inr/numass/cryotemp/PKT8MainViewController.java
index 360ee258..8f24f3e9 100644
--- a/numass-control/cryotemp/src/main/java/inr/numass/cryotemp/PKT8MainViewController.java
+++ b/numass-control/cryotemp/src/main/java/inr/numass/cryotemp/PKT8MainViewController.java
@@ -47,6 +47,7 @@ import java.io.IOException;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.text.ParseException;
+import java.time.Duration;
 import java.time.Instant;
 import java.util.Collection;
 import java.util.ResourceBundle;
@@ -156,6 +157,8 @@ public class PKT8MainViewController implements Initializable, DeviceListener, Me
      */
     private synchronized void setupPlotFrame(Meta plotFrameMeta) {
         plottables = new TimePlottableGroup();
+        plottables.setMaxItems(plotFrameMeta.getInt("maxItems",3000));
+        plottables.setMaxAge(Duration.parse(plotFrameMeta.getString("maxAge","PT2H")));
         plotArea.getChildren().clear();
         plotFrame = new JFreeChartFrame(plotFrameMeta);
         PlotUtils.setXAxis(plotFrame, "timestamp", null, "time");
diff --git a/numass-control/cryotemp/src/main/resources/config/thermo-1.xml b/numass-control/cryotemp/src/main/resources/config/thermo-1.xml
index 2141e114..f66e256d 100644
--- a/numass-control/cryotemp/src/main/resources/config/thermo-1.xml
+++ b/numass-control/cryotemp/src/main/resources/config/thermo-1.xml
@@ -25,7 +25,7 @@
              coefs="[23.894, -358.42, 2355.2, -7509.8, 12893.0, -10454.0, 3403.9]"/>
 
     <!-- Plot configuration -->
-    <plotConfig>
+    <plotConfig maxItems="5000">
         <eachPlot thickness="3"/>
     </plotConfig>
 </device>
\ No newline at end of file
diff --git a/numass-storage/numass-server/src/main/groovy/inr/numass/scripts/TestServer.groovy b/numass-storage/numass-server/src/main/groovy/inr/numass/scripts/TestServer.groovy
index 19865fc9..667a7e63 100644
--- a/numass-storage/numass-server/src/main/groovy/inr/numass/scripts/TestServer.groovy
+++ b/numass-storage/numass-server/src/main/groovy/inr/numass/scripts/TestServer.groovy
@@ -15,12 +15,16 @@
  */
 package inr.numass.scripts
 
-import hep.dataforge.storage.filestorage.FileStorage
+import hep.dataforge.storage.filestorage.VFSUtils
 import inr.numass.server.NumassServer
+import inr.numass.storage.NumassStorage
+import org.apache.commons.vfs2.FileObject
 
 String path = "D:\\temp\\test\\numass-server\\"
 
-FileStorage storage = FileStorage.in(new File(path), null);
+FileObject file = VFSUtils.getLocalFile(new File(path))
+
+NumassStorage storage = new NumassStorage(file,null)
 
 println "Starting test numass listener in "+path
 
diff --git a/numass-storage/numass-server/src/main/java/inr/numass/server/NumassServer.java b/numass-storage/numass-server/src/main/java/inr/numass/server/NumassServer.java
index 121494e9..0af79bdd 100644
--- a/numass-storage/numass-server/src/main/java/inr/numass/server/NumassServer.java
+++ b/numass-storage/numass-server/src/main/java/inr/numass/server/NumassServer.java
@@ -25,17 +25,17 @@ import hep.dataforge.storage.commons.LoaderFactory;
 import hep.dataforge.storage.commons.StorageManager;
 import hep.dataforge.storage.filestorage.FileStorage;
 import inr.numass.storage.NumassStorage;
-import java.io.File;
-import java.io.IOException;
-import java.net.InetAddress;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import ratpack.handling.Chain;
-import ratpack.server.BaseDir;
 import ratpack.server.RatpackServer;
 import ratpack.server.RatpackServerSpec;
 import ratpack.server.ServerConfigBuilder;
 
+import java.io.File;
+import java.io.IOException;
+import java.net.InetAddress;
+
 /**
  *
  * @author darksnake
@@ -83,7 +83,7 @@ public class NumassServer extends AbstractNetworkListener {
         int port = meta().getInt("ratpack.port", 8336);
         ratpack = RatpackServer.start((RatpackServerSpec server) -> server
                 .serverConfig((ServerConfigBuilder config) -> config
-                        .baseDir(BaseDir.find())
+                        .findBaseDir()
                         .address(InetAddress.getLocalHost())
                         .port(port))
                 .handlers((Chain chain) -> chain
diff --git a/numass-storage/numass-server/src/main/java/inr/numass/server/NumassStorageHandler.java b/numass-storage/numass-server/src/main/java/inr/numass/server/NumassStorageHandler.java
index e9bd0770..f43816a9 100644
--- a/numass-storage/numass-server/src/main/java/inr/numass/server/NumassStorageHandler.java
+++ b/numass-storage/numass-server/src/main/java/inr/numass/server/NumassStorageHandler.java
@@ -7,28 +7,25 @@ package inr.numass.server;
 
 import freemarker.template.Template;
 import hep.dataforge.exceptions.StorageException;
+import hep.dataforge.meta.MetaBuilder;
 import hep.dataforge.storage.api.ObjectLoader;
 import hep.dataforge.storage.api.PointLoader;
 import hep.dataforge.storage.api.Storage;
 import hep.dataforge.storage.servlet.StorageRatpackHandler;
 import hep.dataforge.storage.servlet.Utils;
+import org.slf4j.LoggerFactory;
+import ratpack.handling.Context;
+
 import java.io.StringWriter;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.time.format.FormatStyle;
-import java.util.Comparator;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
+import java.util.*;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import org.slf4j.LoggerFactory;
-import ratpack.handling.Context;
 
 /**
- *
  * @author Alexander Nozik
  */
 public class NumassStorageHandler extends StorageRatpackHandler {
@@ -69,20 +66,20 @@ public class NumassStorageHandler extends StorageRatpackHandler {
     }
 
     @Override
-    protected String pointLoaderPlotOptions(PointLoader loader) {
+    protected MetaBuilder pointLoaderPlotOptions(PointLoader loader) {
+        MetaBuilder builder = super.pointLoaderPlotOptions(loader);
         if (loader.getName().contains("msp") || loader.getName().contains("vac")) {
-            return "                    legend: { \n"
-                    + "                        position: 'bottom' \n"
-                    + "                    },\n"
-                    + "                    title: '" + loader.getName() + "',\n"
-                    + "                    vAxis:{\n"
-                    + "                        logScale: true\n"
-                    + "                    }";
-        } else {
-            return super.pointLoaderPlotOptions(loader);
+            builder.putValue("legend.position", "bottom");
+            builder.putValue("title", "\"" + loader.getName() + "\"");
+            builder.putNode(new MetaBuilder("vAxis")
+                    .putValue("logScale", true)
+                    .putValue("format", "scientific")
+            );
         }
+        return builder;
     }
 
+
     private String render(NumassNote note) {
         return String.format("<strong id=\"%s\">%s</strong> %s", note.ref(), formatter.format(note.time()), note.content());
     }
@@ -94,7 +91,7 @@ public class NumassStorageHandler extends StorageRatpackHandler {
      */
     @SuppressWarnings("unchecked")
     private Stream<NumassNote> getNotes(ObjectLoader noteLoader) {
-        return noteLoader.fragmentNames().stream().<NumassNote>map(new Function<String, NumassNote>() {
+        return noteLoader.fragmentNames().stream().map(new Function<String, NumassNote>() {
             @Override
             public NumassNote apply(String name) {
                 try {