diff --git a/docs/releases/v2.3.3.md b/docs/releases/v2.3.3.md
index ad662197a8d1e091372f5a9bcd8ca48fab717f0e..daf21d1b8a1090df33fa4ff89351285bf271ea1e 100644
--- a/docs/releases/v2.3.3.md
+++ b/docs/releases/v2.3.3.md
@@ -1,4 +1,4 @@
-# v2.3.2
+# v2.3.3
 
 ## Bugfixes
 
diff --git a/docs/releases/v2.3.4.md b/docs/releases/v2.3.4.md
new file mode 100644
index 0000000000000000000000000000000000000000..7874ad49313a9e874ae5b80787a9e25c10ef0a35
--- /dev/null
+++ b/docs/releases/v2.3.4.md
@@ -0,0 +1,5 @@
+# v2.3.4
+
+## Bugfixes
+
+- fix connectivity dataset external link
diff --git a/mkdocs.yml b/mkdocs.yml
index 7afc5fcad58f0eb98bcaf8114adbc1a9979135ba..f510448ed99da52e0253813054cfcb4f61c0c4e7 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -40,6 +40,7 @@ pages:
     - Fetching datasets: 'advanced/datasets.md'
     - Display non-atlas volumes: 'advanced/otherVolumes.md'
   - Release notes:
+    - v2.3.4: 'releases/v2.3.4.md'
     - v2.3.3: 'releases/v2.3.3.md'
     - v2.3.2: 'releases/v2.3.2.md'
     - v2.3.1: 'releases/v2.3.1.md'
diff --git a/src/ui/connectivityBrowser/connectivityBrowser.component.spec.ts b/src/ui/connectivityBrowser/connectivityBrowser.component.spec.ts
new file mode 100644
index 0000000000000000000000000000000000000000..72aa760cb486d4a0457df4669ea12559ec446ee3
--- /dev/null
+++ b/src/ui/connectivityBrowser/connectivityBrowser.component.spec.ts
@@ -0,0 +1,78 @@
+import {ConnectivityBrowserComponent} from "src/ui/connectivityBrowser/connectivityBrowser.component";
+import {async, ComponentFixture, TestBed} from "@angular/core/testing";
+import {Action} from "@ngrx/store";
+import {
+    defaultRootState,
+} from "src/services/stateStore.service";
+import {HttpClientModule} from "@angular/common/http";
+import {CUSTOM_ELEMENTS_SCHEMA} from "@angular/core";
+import {DatabrowserModule} from "src/ui/databrowserModule";
+import {provideMockActions} from "@ngrx/effects/testing";
+import {provideMockStore} from "@ngrx/store/testing";
+import {Observable, of} from "rxjs";
+
+describe('ConnectivityComponent', () => {
+
+    let component: ConnectivityBrowserComponent;
+    let fixture: ComponentFixture<ConnectivityBrowserComponent>;
+    const actions$: Observable<Action> = of({type: 'TEST'})
+
+    let datasetList = [
+        {
+            id: 'id1',
+            name: 'n1',
+            description: 'd1',
+            kgId: 'kgId1',
+            kgschema: 'kgschema1'
+        }, {
+            id: 'id2',
+            name: 'n2',
+            description: 'd2',
+            kgId: 'kgId2',
+            kgschema: 'kgschema2'
+        }
+    ]
+
+    beforeEach(async (() => {
+        TestBed.configureTestingModule({
+            imports: [
+                HttpClientModule,
+                DatabrowserModule
+            ],
+            providers: [
+                provideMockActions(() => actions$),
+                provideMockStore({ initialState: defaultRootState })
+            ],
+            declarations: [ConnectivityBrowserComponent],
+            schemas: [
+                CUSTOM_ELEMENTS_SCHEMA,
+            ],
+        }).compileComponents()
+    }));
+
+    it('> component can be created', async () => {
+        fixture = TestBed.createComponent(ConnectivityBrowserComponent)
+        component = fixture.componentInstance
+        expect(component).toBeTruthy()
+    })
+
+    it('> change dataset changes description, kgId and kgschema', () => {
+        fixture = TestBed.createComponent(ConnectivityBrowserComponent)
+        component = fixture.componentInstance
+
+        component.datasetList = datasetList
+
+        component.changeDataset({value: 'n1'})
+
+        expect(component.selectedDatasetDescription).toEqual('d1')
+        expect(component.selectedDatasetKgId).toEqual('kgId1')
+        expect(component.selectedDatasetKgSchema).toEqual('kgschema1')
+
+        component.changeDataset({value: 'n2'})
+
+        expect(component.selectedDatasetDescription).toEqual('d2')
+        expect(component.selectedDatasetKgId).toEqual('kgId2')
+        expect(component.selectedDatasetKgSchema).toEqual('kgschema2')
+    })
+
+});
\ No newline at end of file
diff --git a/src/ui/connectivityBrowser/connectivityBrowser.component.ts b/src/ui/connectivityBrowser/connectivityBrowser.component.ts
index 32c9bac5847785fbb54f840d93e1e739760decf3..5e1996b84472dcfac7b6f78a57ec76f7b0d8960d 100644
--- a/src/ui/connectivityBrowser/connectivityBrowser.component.ts
+++ b/src/ui/connectivityBrowser/connectivityBrowser.component.ts
@@ -112,6 +112,8 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
     public datasetList: any[] = []
     public selectedDataset: any
     public selectedDatasetDescription: string = ''
+    public selectedDatasetKgId: string = ''
+    public selectedDatasetKgSchema: string = ''
     public connectedAreas = []
 
     private selectedParcellationFlatRegions$ = this.store$.pipe(
@@ -151,7 +153,8 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
         this.datasetList = res.filter(dl => dl['parcellation id'] === this.parcellationId)
         this.selectedDataset = this.datasetList[0].name
         this.selectedDatasetDescription = this.datasetList[0].description
-
+        this.selectedDatasetKgId = this.datasetList[0].kgId
+        this.selectedDatasetKgSchema = this.datasetList[0].kgschema
         this.changeDataset()
       })
     }
@@ -166,9 +169,9 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
           }
         })
       )
-        
-      /** 
-       * Listen to of clear view entries 
+
+      /**
+       * Listen to of clear view entries
        * can come from within the component (when connectivity is not available for the dataset)
        * --> do not collapse
        * or outside (user clicks x in chip)
@@ -186,7 +189,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
           }
         })
       )
-        
+
 
       this.subscriptions.push(this.overwrittenColorMap$.subscribe(ocm => {
         if (this.accordionIsExpanded && !ocm) {
@@ -209,7 +212,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
           this.setColorMap$.pipe(
             distinctUntilChanged()
           ),
-          fromEvent(this.connectivityComponentElement.nativeElement, 'connectivityDataReceived').pipe(
+          fromEvent(this.connectivityComponentElement?.nativeElement, 'connectivityDataReceived').pipe(
             map((e: CustomEvent) => e.detail)
           )
         ).subscribe(([flag, connectedAreas]) => {
@@ -278,7 +281,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
       this.restoreDefaultColormap()
       this.subscriptions.forEach(s => s.unsubscribe())
     }
-    
+
     clearViewer() {
       this.store$.dispatch(
         ngViewerActionClearView({
@@ -297,7 +300,10 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
     changeDataset(event = null) {
       if (event) {
         this.selectedDataset = event.value
-        this.selectedDatasetDescription = this.datasetList.find(d => d.name === this.selectedDataset).description
+        const foundDataset = this.datasetList.find(d => d.name === this.selectedDataset)
+        this.selectedDatasetDescription = foundDataset?.description
+        this.selectedDatasetKgId = foundDataset?.kgId || null
+        this.selectedDatasetKgSchema = foundDataset?.kgschema || null
       }
       if (this.datasetList.length && this.selectedDataset) {
         const selectedDatasetId = this.datasetList.find(d => d.name === this.selectedDataset).id
@@ -355,7 +361,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
 
       const existingMap: Map<string, Map<number, { red: number, green: number, blue: number }>> = (getWindow().interactiveViewer.viewerHandle.getLayersSegmentColourMap())
       const colorMap = new Map(existingMap)
-        
+
       this.allRegions.forEach(r => {
         if (r.ngId) {
           colorMap.get(r.ngId).set(r.labelIndex, {red: 255, green: 255, blue: 255})
@@ -365,7 +371,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
       this.connectedAreas.forEach(area => {
         const areaAsRegion = this.allRegions
           .filter(r => {
-              
+
             if (this.regionHemisphere) {
               let regionName = area.name
               let regionStatus = null
@@ -378,7 +384,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
               }
               return r.name === regionName && r.status === regionStatus
             }
-              
+
             return r.name === area.name
           })
           .map(r => r)
@@ -400,7 +406,7 @@ export class ConnectivityBrowserComponent implements OnInit, AfterViewInit, OnDe
     }
 
     public exportFullConnectivity() {
-      this.fullConnectivityGridElement.nativeElement['downloadCSV']()
+      this.fullConnectivityGridElement?.nativeElement['downloadCSV']()
     }
 
 }
diff --git a/src/ui/connectivityBrowser/connectivityBrowser.template.html b/src/ui/connectivityBrowser/connectivityBrowser.template.html
index 3f69aa9c292f8d61a236f30bad6f9f963938b84e..eafa8d10c31ff86138e9d45cff13cea3201aaf43 100644
--- a/src/ui/connectivityBrowser/connectivityBrowser.template.html
+++ b/src/ui/connectivityBrowser/connectivityBrowser.template.html
@@ -38,7 +38,10 @@
                     <button class="flex-grow-0 flex-shrink-0" mat-icon-button
                             iav-dataset-show-dataset-dialog
                             [iav-dataset-show-dataset-dialog-name]="selectedDataset"
-                            [iav-dataset-show-dataset-dialog-description]="selectedDatasetDescription">
+                            [iav-dataset-show-dataset-dialog-description]="selectedDatasetDescription"
+                            [iav-dataset-show-dataset-dialog-kgid]="selectedDatasetKgId? selectedDatasetKgId : null"
+                            [iav-dataset-show-dataset-dialog-kgschema]="selectedDatasetKgSchema? selectedDatasetKgSchema : null"
+                            >
                         <i class="fas fa-info"></i>
                     </button>
                     <button class="flex-grow-0 flex-shrink-0"