diff --git a/openbis-ipad/openBIS/openBIS.xcodeproj/project.xcworkspace/xcuserdata/cramakri.xcuserdatad/UserInterfaceState.xcuserstate b/openbis-ipad/openBIS/openBIS.xcodeproj/project.xcworkspace/xcuserdata/cramakri.xcuserdatad/UserInterfaceState.xcuserstate
index 0202be35a164aa776ec32b7a689a5db0108646b1..c1bb18ae55cac755d737f19347057e3affb6ae6b 100644
Binary files a/openbis-ipad/openBIS/openBIS.xcodeproj/project.xcworkspace/xcuserdata/cramakri.xcuserdatad/UserInterfaceState.xcuserstate and b/openbis-ipad/openBIS/openBIS.xcodeproj/project.xcworkspace/xcuserdata/cramakri.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.h b/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.h
index e2a08d8d6b48005a2ec304d87792e7c6584eef6a..15078789ffb22076544b028516065a79a87e8ef4 100644
--- a/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.h
+++ b/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.h
@@ -23,10 +23,10 @@
 
 #import <UIKit/UIKit.h>
 
-@class CISDOBIpadEntity;
+@class CISDOBIpadEntity, CISDOBOpenBisModel;
 @interface CISDOBDetailViewController : UIViewController <UISplitViewControllerDelegate>
 
-@property (strong, nonatomic) CISDOBIpadEntity *detailItem;
+@property (strong, nonatomic) CISDOBOpenBisModel *openBisModel;
 
 @property (weak, nonatomic) IBOutlet UITableView *propertiesTableView;
 @property (weak, nonatomic) IBOutlet UILabel *summaryHeaderLabel;
@@ -34,4 +34,7 @@
 @property (weak, nonatomic) IBOutlet UILabel *identifierLabel;
 @property (weak, nonatomic) IBOutlet UIImageView *imageView;
 
+// Actions
+- (void)selectionDidChange;
+
 @end
diff --git a/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.m b/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.m
index e09340e30e8cae6c9c11ecb9ff8e59224d530670..21c1cc00fe0b5c074b54a4dbf2976ba6962394d7 100644
--- a/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.m
+++ b/openbis-ipad/openBIS/openBIS/CISDOBDetailViewController.m
@@ -23,9 +23,12 @@
 
 #import "CISDOBDetailViewController.h"
 #import "CISDOBIpadEntity.h"
+#import "CISDOBOpenBisModel.h"
 
 @interface CISDOBDetailViewController ()
 @property (strong, nonatomic) UIPopoverController *masterPopoverController;
+@property (readonly) CISDOBIpadEntity *detailItem;
+
 - (void)configureView;
 - (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath;
 @end
@@ -34,28 +37,26 @@
 
 #pragma mark - Managing the detail item
 
-- (void)setDetailItem:(id)newDetailItem
+- (void)selectionDidChange
 {
-    if (_detailItem != newDetailItem) {
-        _detailItem = newDetailItem;
-        
-        // Update the view.
-        [self configureView];
-    }
+    // Update the view.
+    [self configureView];
 
     if (self.masterPopoverController != nil) {
         [self.masterPopoverController dismissPopoverAnimated:YES];
-    }        
+    }
 }
 
+- (CISDOBIpadEntity *)detailItem { return [self.openBisModel selectedObject]; }
+
 - (void)configureView
 {
     // Update the user interface for the detail item.
     if (!self.detailItem) return;
     
-    self.summaryHeaderLabel.text = [[self.detailItem valueForKey:@"summaryHeader"] description];
-    self.summaryLabel.text = [[self.detailItem valueForKey:@"summary"] description];
-    self.identifierLabel.text = [[self.detailItem valueForKey:@"identifier"] description];
+    self.summaryHeaderLabel.text = [self.detailItem.summaryHeader description];
+    self.summaryLabel.text = [self.detailItem.summary description];
+    self.identifierLabel.text = [self.detailItem.identifier description];
 
     if (self.detailItem.imageUrl) {
         NSURL *imageUrl = [NSURL URLWithString: self.detailItem.imageUrl];
@@ -106,7 +107,7 @@
 {
     if (!self.detailItem) return 0;
     
-    return [_detailItem.properties count];
+    return [self.detailItem.properties count];
 }
 
 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
diff --git a/openbis-ipad/openBIS/openBIS/CISDOBMasterViewController.m b/openbis-ipad/openBIS/openBIS/CISDOBMasterViewController.m
index 20b36ba17791f98ecfd372ea87ef3469161aa52b..5c20e1456486c22f854bf1e252ea85a5553fa65b 100644
--- a/openbis-ipad/openBIS/openBIS/CISDOBMasterViewController.m
+++ b/openbis-ipad/openBIS/openBIS/CISDOBMasterViewController.m
@@ -54,6 +54,7 @@
 //    UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(insertNewObject:)];
 //    self.navigationItem.rightBarButtonItem = addButton;
     self.detailViewController = (CISDOBDetailViewController *)[[self.splitViewController.viewControllers lastObject] topViewController];
+    self.detailViewController.openBisModel = self.openBisModel;
 }
 
 - (void)didReceiveMemoryWarning
@@ -127,7 +128,7 @@
     // Segue to the detail view unless we are on the ipad
     if ([[UIDevice currentDevice] userInterfaceIdiom] != UIUserInterfaceIdiomPad) return;
 
-    CISDOBIpadEntity *object = [self.openBisModel selectObjectAtIndexPath: indexPath];
+    [self.openBisModel selectObjectAtIndexPath: indexPath];
     if ([self.openBisModel isSelectionGroup]) {
         UIStoryboard *storyboard = self.storyboard;
         CISDOBMasterViewController *child = [storyboard instantiateViewControllerWithIdentifier: @"Master"];
@@ -135,7 +136,7 @@
 
         [self.navigationController pushViewController: child animated: YES];
     } else {
-        self.detailViewController.detailItem = object;
+        [self.detailViewController selectionDidChange];
     }
 
 }
@@ -143,17 +144,15 @@
 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
 {
     if ([[segue identifier] isEqualToString:@"showDetail"]) {
-        NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
-        CISDOBIpadEntity *object = [self.openBisModel objectAtIndexPath: indexPath];
-        [[segue destinationViewController] setDetailItem:object];
+        [[segue destinationViewController] setOpenBisModel: self.openBisModel];
     }
 }
 
 - (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
 {
     CISDOBIpadEntity *object = [self.openBisModel objectAtIndexPath: indexPath];
-    cell.textLabel.text = [object valueForKey:@"summaryHeader"];
-    cell.detailTextLabel.text = [object valueForKey:@"summary"];
+    cell.textLabel.text = object.summaryHeader;
+    cell.detailTextLabel.text = object.summary;
     if ([object.childrenPermIds count] > 0) {
         cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
     } else {
diff --git a/openbis-ipad/openBIS/openBIS/en.lproj/MainStoryboard_iPad.storyboard b/openbis-ipad/openBIS/openBIS/en.lproj/MainStoryboard_iPad.storyboard
index 4415cd622e553b6ee561c660cf666cf157ff49ff..a906f98a2437dccb5f0e4fd5e0529a5136d1542e 100644
--- a/openbis-ipad/openBIS/openBIS/en.lproj/MainStoryboard_iPad.storyboard
+++ b/openbis-ipad/openBIS/openBIS/en.lproj/MainStoryboard_iPad.storyboard
@@ -188,7 +188,7 @@
                             <outlet property="delegate" destination="19" id="21"/>
                         </connections>
                     </tableView>
-                    <navigationItem key="navigationItem" title="Entity" id="40"/>
+                    <navigationItem key="navigationItem" title="Categories" id="40"/>
                 </tableViewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="23" sceneMemberID="firstResponder"/>
             </objects>