diff --git a/dataspread-ui/src/Components/Navigation.js b/dataspread-ui/src/Components/Navigation.js
index 4f4c9156..65f8048e 100644
--- a/dataspread-ui/src/Components/Navigation.js
+++ b/dataspread-ui/src/Components/Navigation.js
@@ -1062,6 +1062,8 @@ export default class Navigation extends Component {
                     queryObj.last = lastR;
                     queryObj.conditions = cond;
                     queryObj.values = value;
+                    let childlist = this.computePath();
+                    queryObj.path = " " + childlist;
 
                     fetch(this.state.urlPrefix + '/api/' + 'getBrushColorList', {
                         method: "POST",
diff --git a/webapp/src/api/controller/NavigationController.java b/webapp/src/api/controller/NavigationController.java
index db5b15b1..ff1c2d4b 100644
--- a/webapp/src/api/controller/NavigationController.java
+++ b/webapp/src/api/controller/NavigationController.java
@@ -241,6 +241,8 @@ public HashMap<String, Object> getBrushColorList(@RequestBody String value) {
         JSONObject dict = (JSONObject) parser.parse(value);
         String bookId = (String) dict.get("bookId");
         String sheetName = (String) dict.get("sheetName");
+        String path = (String) dict.get("path");
+
         JSONArray first_ls = (JSONArray) dict.get("first");
         JSONArray last_ls = (JSONArray) dict.get("last");
         JSONArray cond_ls = (JSONArray) dict.get("conditions");
@@ -249,7 +251,8 @@ public HashMap<String, Object> getBrushColorList(@RequestBody String value) {
         SBook book = BookBindings.getBookById(bookId);
         SSheet currentSheet = book.getSheetByName(sheetName);
 
-        ArrayList<Integer> indices = new ArrayList<Integer>();
+
+        List cellIndices;
         Model model = currentSheet.getDataModel();
         //Todo: when on demand loading available
         /*for(int i=0;i<first_ls.size();i++)
@@ -264,13 +267,19 @@ public HashMap<String, Object> getBrushColorList(@RequestBody String value) {
                 double queryValue = Double.parseDouble((String) val_ls.get(i));
 
                 if(model.navS.isConditionSatisfied(currvalue,(String) cond_ls.get(i),queryValue))
-                    indices.add(j);
+                    cellIndices.add(j);
             }
         }*/
 
         System.out.println("Calling brush color list");
+
+
         int first = (Integer) first_ls.get(0);
         int last = (Integer) last_ls.get(0);
+
+        //cellIndices = model.navS.getBrushColotList(first,last,val_ls,cond_ls,attrIndex);
+
+        cellIndices = new ArrayList<Integer>();
         for(int j=first;j<=last;j++)
         {
             SCell sCell = currentSheet.getCell(j, attrIndex);
@@ -280,19 +289,19 @@ public HashMap<String, Object> getBrushColorList(@RequestBody String value) {
                 double queryValue = Double.parseDouble((String) val_ls.get(0));
 
                 if (model.navS.isConditionSatisfied(currvalue, (String) cond_ls.get(0), queryValue))
-                    indices.add(j);
+                    cellIndices.add(j);
             }catch (Exception e)
             {
                 String currvalue = String.valueOf(sCell.getValue());
                 String queryValue = (String) val_ls.get(0);
 
                 if (model.navS.isConditionSatisfiedStr(currvalue, (String) cond_ls.get(0), queryValue))
-                    indices.add(j);
+                    cellIndices.add(j);
             }
         }
 
 
-        return JsonWrapper.generateJson(indices);
+        return JsonWrapper.generateJson(cellIndices);
     }
 
     private int[] getIndices(String path) {
diff --git a/zssmodel/src/org/zkoss/zss/model/impl/Bucket.java b/zssmodel/src/org/zkoss/zss/model/impl/Bucket.java
index 52421b60..fc1dbd87 100644
--- a/zssmodel/src/org/zkoss/zss/model/impl/Bucket.java
+++ b/zssmodel/src/org/zkoss/zss/model/impl/Bucket.java
@@ -19,6 +19,7 @@ public class Bucket<T> implements Serializable {
     String summary;
     ArrayList<Bucket> children;
     Map<String, Object> aggMem;
+    Map<String, Object> summaryStat;
 
     Bucket() {
         aggMem = new HashMap<>();
diff --git a/zssmodel/src/org/zkoss/zss/model/impl/NavChartsPrototype.java b/zssmodel/src/org/zkoss/zss/model/impl/NavChartsPrototype.java
index 1dc24212..541948b7 100644
--- a/zssmodel/src/org/zkoss/zss/model/impl/NavChartsPrototype.java
+++ b/zssmodel/src/org/zkoss/zss/model/impl/NavChartsPrototype.java
@@ -78,10 +78,13 @@ private int getChartType(String formulaStr) {
 
 
 
-    public HashMap<String,Double> summaryStat(int attr, Bucket<String> subGroup)
+    public Map<String,Object> summaryStat(int attr, Bucket<String> subGroup)
     {
+        if(subGroup.summaryStat!=null)
+            return subGroup.summaryStat;
+
         ArrayList<Double> numData = navS.collectDoubleValues(attr, subGroup);
-        HashMap<String,Double> result = new HashMap<String,Double>();
+        Map<String,Object> result = new HashMap<>();
         //min, max, average, var, STDDEV
         //  0,   1,       2,   3,     4
         double min = Double.MAX_VALUE;
@@ -107,7 +110,7 @@ public HashMap<String,Double> summaryStat(int attr, Bucket<String> subGroup)
         result.put("AVERAGE",avg/numData.size());
         result.put("STDEV",Double.MAX_VALUE);
         result.put("VAR",Double.MAX_VALUE);
-
+        subGroup.summaryStat = result;
         return result;
     }
 
@@ -133,14 +136,14 @@ private void type0Chart(Map<String, Object> obj, int attr, Bucket<String> subGro
     private void type0Chart(Map<String, Object> obj, int attr, Bucket<String> subGroup, String formula) {
         obj.put("chartType", 0);
         List<Double> chartData = new ArrayList<>();
-        HashMap<String,Double> res =  summaryStat(attr,subGroup);
+        Map<String, Object> res =  summaryStat(attr,subGroup);
         List<String> emptyList = new ArrayList<>();
         emptyList.add("");
         for (String f : type0Stat) {
             if(!f.equals("MEDIAN"))
             {
-                chartData.add(res.get(f));
-                navS.setBucketAggWithMemoization(model,subGroup,attr,f,emptyList,res.get(f));
+                chartData.add((Double) res.get(f));
+                navS.setBucketAggWithMemoization(model,subGroup,attr,f,emptyList,(Double) res.get(f));
             }
             else if(formula.equals("MEDIAN"))
             {
@@ -177,7 +180,7 @@ private void type2Chart(Map<String, Object> obj, int attr, Bucket<String> subGro
         NavigationHistogram hist = new NavigationHistogram(navS.collectDoubleValues(attr, subGroup));
         hist.formattedOutput(obj, null);
 
-        HashMap<String,Double> res =  summaryStat(attr,subGroup);
+        Map<String, Object> res =  summaryStat(attr,subGroup);
 
         HashMap<String, Object> chartData = (HashMap) obj.get("chartData");
         List<String> emptyList = new ArrayList<>();
@@ -186,12 +189,12 @@ private void type2Chart(Map<String, Object> obj, int attr, Bucket<String> subGro
             if(f.equals("AVERAGE"))
             {
                 chartData.put(f,res.get(f));
-                navS.setBucketAggWithMemoization(model,subGroup,attr,f,emptyList,res.get(f));
+                navS.setBucketAggWithMemoization(model,subGroup,attr,f,emptyList,(Double) res.get(f));
             }
             else
             {
                 Map<String, Object> resMed = navS.getBucketAggWithMemoization(model, subGroup, attr, f, emptyList);
-                chartData.put(f,(Double) resMed.get("value"));
+                chartData.put(f,resMed.get("value"));
             }
         }
     }
diff --git a/zssmodel/src/org/zkoss/zss/model/impl/NavigationStructure.java b/zssmodel/src/org/zkoss/zss/model/impl/NavigationStructure.java
index 5ae92ad4..55653144 100644
--- a/zssmodel/src/org/zkoss/zss/model/impl/NavigationStructure.java
+++ b/zssmodel/src/org/zkoss/zss/model/impl/NavigationStructure.java
@@ -8,6 +8,7 @@
 import org.model.AutoRollbackConnection;
 import org.model.DBContext;
 import org.model.DBHandler;
+import org.zkoss.json.JSONArray;
 import org.zkoss.zss.model.CellRegion;
 import org.zkoss.zss.model.SBook;
 import org.zkoss.zss.model.SCell;
@@ -32,6 +33,9 @@ public class NavigationStructure {
      */
     private ReturnBuffer returnBuffer;
     public int isNumericNavAttr;
+    List cellIndices;
+
+
 
 
     class ReturnBuffer {
@@ -98,6 +102,51 @@ else if (condition.equals("<="))
 
     }
 
+    public List<Integer> getBrushColotList(int first, int last, JSONArray val_ls,JSONArray cond_ls, int attrIndex) {
+
+        System.out.println(first+","+last);
+        List newCellIndices = new ArrayList<Integer>();
+        if(cellIndices!=null)
+        {
+
+            for(int i=first-1;i<last;i++)
+            {
+                if((int) cellIndices.get(i)==1)
+                    newCellIndices.add(i+1);
+            }
+            return newCellIndices;
+        }
+        cellIndices = new ArrayList<Integer>();
+        for(int j=first;j<=last;j++)
+        {
+            SCell sCell = currentSheet.getCell(j, attrIndex);
+
+            try {
+                double currvalue = Double.parseDouble(String.valueOf(sCell.getValue()));
+                double queryValue = Double.parseDouble((String) val_ls.get(0));
+
+                if (isConditionSatisfied(currvalue, (String) cond_ls.get(0), queryValue)) {
+                    cellIndices.add(1);
+                    newCellIndices.add(j);
+                }
+                else
+                    cellIndices.add(0);
+            }catch (Exception e)
+            {
+                String currvalue = String.valueOf(sCell.getValue());
+                String queryValue = (String) val_ls.get(0);
+
+                if (isConditionSatisfiedStr(currvalue, (String) cond_ls.get(0), queryValue)){
+                    cellIndices.add(1);
+                    newCellIndices.add(j);
+                }
+                else
+                    cellIndices.add(0);
+            }
+        }
+        return newCellIndices;
+    }
+
     public boolean isConditionSatisfied(double currValue, String condition, double queryValue) {
         int conditionCode = getConditionCode(condition);