diff --git a/numass-main/src/main/java/inr/numass/actions/MergeDataAction.java b/numass-main/src/main/java/inr/numass/actions/MergeDataAction.java
index 3f885149..0b4c0d18 100644
--- a/numass-main/src/main/java/inr/numass/actions/MergeDataAction.java
+++ b/numass-main/src/main/java/inr/numass/actions/MergeDataAction.java
@@ -22,7 +22,6 @@ import hep.dataforge.description.NodeDef;
 import hep.dataforge.description.TypedActionDef;
 import hep.dataforge.io.ColumnedDataWriter;
 import hep.dataforge.meta.Meta;
-import hep.dataforge.meta.MetaBuilder;
 import hep.dataforge.tables.*;
 
 import java.io.OutputStream;
@@ -63,31 +62,31 @@ public class MergeDataAction extends ManyToOneAction<Table, Table> {
         ColumnedDataWriter.writeDataSet(stream, output, outputMeta.toString());
     }
 
-    @Override
-    protected MetaBuilder outputMeta(DataNode<Table> input) {
-
-        String numassPath = input.dataStream().<String>map(data -> data.meta().getString("numass.path", ""))
-                .reduce("", (String path, String newPath) -> {
-                    if (path.isEmpty()) {
-                        return null;
-                    } else if (path.isEmpty()) {
-                        return newPath;
-                    } else if (!path.equals(newPath)) {
-                        return null;
-                    } else {
-                        return newPath;
-                    }
-                });
-
-        MetaBuilder builder = super.outputMeta(input);
-        /*
-         * Указываем путь только есл0и он одинаковый для всех входных файлов
-         */
-        if (numassPath != null) {
-            builder.putValue("numass.path", numassPath);
-        }
-        return builder;
-    }
+//    @Override
+//    protected MetaBuilder outputMeta(DataNode<Table> input) {
+//
+//        String numassPath = input.dataStream().map(data -> data.meta().getString("numass.path", ""))
+//                .reduce("", (String path, String newPath) -> {
+//                    if (path.isEmpty()) {
+//                        return null;
+//                    } else if (path.isEmpty()) {
+//                        return newPath;
+//                    } else if (!path.equals(newPath)) {
+//                        return null;
+//                    } else {
+//                        return newPath;
+//                    }
+//                });
+//
+//        MetaBuilder builder = super.outputMeta(input);
+//        /*
+//         * Указываем путь только есл0и он одинаковый для всех входных файлов
+//         */
+//        if (numassPath != null) {
+//            builder.putValue("numass.path", numassPath);
+//        }
+//        return builder;
+//    }
 
     private DataPoint mergeDataPoints(DataPoint dp1, DataPoint dp2) {
         if (dp1 == null) {
diff --git a/numass-main/src/main/java/inr/numass/workspace/NumassFitScanTask.java b/numass-main/src/main/java/inr/numass/workspace/NumassFitScanTask.java
index 61a8989c..b9553acd 100644
--- a/numass-main/src/main/java/inr/numass/workspace/NumassFitScanTask.java
+++ b/numass-main/src/main/java/inr/numass/workspace/NumassFitScanTask.java
@@ -18,6 +18,8 @@ import hep.dataforge.values.Value;
 import hep.dataforge.workspace.AbstractTask;
 import hep.dataforge.workspace.TaskModel;
 
+import java.util.stream.Collectors;
+
 /**
  * @author Alexander Nozik
  */
@@ -27,8 +29,18 @@ public class NumassFitScanTask extends AbstractTask<FitState> {
     @Override
     protected DataNode<FitState> run(TaskModel model, ProgressCallback callback, DataNode<?> data) {
         Meta config = model.meta();
-        String scanParameter = config.getString("scanPar", "msterile2");
-        Value scanValues = config.getValue("scanValues", Value.of("[2.5e5, 1e6, 2.25e6, 4e6, 6.25e6, 9e6]"));
+        String scanParameter = config.getString("scan.parameter", "msterile2");
+
+        Value scanValues;
+        if (config.hasValue("scan.masses")) {
+            scanValues = Value.of(config.getValue("scan.masses")
+                    .listValue().stream()
+                    .map(it -> Math.pow(it.doubleValue() * 1000, 2.0))
+                    .collect(Collectors.toList())
+            );
+        } else {
+            scanValues = config.getValue("scan.values", Value.of("[2.5e5, 1e6, 2.25e6, 4e6, 6.25e6, 9e6]"));
+        }
         Action<Table, FitState> action = new FitAction().withContext(model.getContext()).withParentProcess(callback.workName());
         DataTree.Builder<FitState> resultBuilder = DataTree.builder(FitState.class);
         DataNode<Table> sourceNode = data.getCheckedNode("prepare", Table.class);
@@ -66,7 +78,7 @@ public class NumassFitScanTask extends AbstractTask<FitState> {
     @Override
     protected TaskModel transformModel(TaskModel model) {
         //Transmit meta as-is
-        MetaBuilder metaBuilder = new MetaBuilder(model.meta()).removeNode("fit");
+        MetaBuilder metaBuilder = new MetaBuilder(model.meta()).removeNode("fit").removeNode("scan");
         if (model.meta().hasMeta("filter")) {
             model.dependsOn("numass.filter", metaBuilder.build(), "prepare");
         } else {