diff --git a/src/atlasComponents/parcellationRegion/region.base.ts b/src/atlasComponents/parcellationRegion/region.base.ts
index 0628440aa0943ec8d385b30f25f2547dd888c093..10f757d63e6e4138ebbe22191b48a66eb66a2b53 100644
--- a/src/atlasComponents/parcellationRegion/region.base.ts
+++ b/src/atlasComponents/parcellationRegion/region.base.ts
@@ -4,7 +4,7 @@ import { uiStateOpenSidePanel, uiStateExpandSidePanel, uiActionShowSidePanelConn
 import { distinctUntilChanged, switchMap, filter, map, withLatestFrom } from "rxjs/operators";
 import { Observable, BehaviorSubject, combineLatest } from "rxjs";
 import { ARIA_LABELS } from 'common/constants'
-import { flattenRegions, getIdFromFullId, getIdFromKgIdObj, rgbToHsl } from 'common/util'
+import { flattenRegions, getIdFromKgIdObj, rgbToHsl } from 'common/util'
 import { viewerStateSetConnectivityRegion, viewerStateNavigateToRegion, viewerStateToggleRegionSelect, viewerStateNewViewer, isNewerThan } from "src/services/state/viewerState.store.helper";
 import { viewerStateFetchedTemplatesSelector, viewerStateGetSelectedAtlas, viewerStateSelectedTemplateFullInfoSelector, viewerStateSelectedTemplateSelector } from "src/services/state/viewerState/selectors";
 import { strToRgb, verifyPositionArg, getRegionHemisphere } from 'common/util'
@@ -18,6 +18,7 @@ export class RegionBase {
 
   private _position: [number, number, number]
   set position(val){
+    console.log('position', val)
     if (verifyPositionArg(val)) {
       this._position = val
     } else {
@@ -33,7 +34,9 @@ export class RegionBase {
   set region(val) {
     this._region = val
     this.region$.next(this._region)
-    this.position = val && val.position
+
+    // bug the centroid returned is currently nonsense
+    // this.position = val?.props?.centroid_mm
     if (!this._region) return
 
     const rgb = this._region.rgb
diff --git a/src/atlasComponents/parcellationRegion/regionMenu/regionMenu.template.html b/src/atlasComponents/parcellationRegion/regionMenu/regionMenu.template.html
index 039b2cdb7c1a3176ef6568df459b635b6e77fa7f..2ce44030ff3a719e2d13fe3986e3a36598d754d9 100644
--- a/src/atlasComponents/parcellationRegion/regionMenu/regionMenu.template.html
+++ b/src/atlasComponents/parcellationRegion/regionMenu/regionMenu.template.html
@@ -41,11 +41,23 @@
       <!-- position -->
       <button mat-icon-button *ngIf="position"
         (click)="navigateToRegion()"
-        [matTooltip]="GO_TO_REGION_CENTROID + ': ' + (position | nmToMm | addUnitAndJoin : 'mm')">
+        [matTooltip]="GO_TO_REGION_CENTROID + ': ' + (position | addUnitAndJoin : 'mm')">
         <mat-icon fontSet="fas" fontIcon="fa-map-marked-alt">
         </mat-icon>
       </button>
 
+      <!-- explore doi -->
+      <ng-template let-infos [ngIf]="region?.originDatainfos">
+        <ng-container *ngFor="let info of infos">
+          <a *ngFor="let url of info.urls"
+            [href]="url.doi | doiParserPipe"
+            target="_blank"
+            mat-icon-button>
+            <i class="fas fa-external-link-alt"></i>
+          </a>
+        </ng-container>
+      </ng-template>
+
     </mat-card-subtitle>
 
   </div>
diff --git a/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.style.css b/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.style.css
index 5fd6a8800177b238208eac44a9cfb79dce2b23d0..f3a3b5acb3092a376a8030a1334573b5efdc0785 100644
--- a/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.style.css
+++ b/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.style.css
@@ -6,4 +6,8 @@ cdk-virtual-scroll-viewport
 modality-picker
 {
   font-size: 90%;
+}
+.virtual-scroll-element
+{
+  height:50px;
 }
\ No newline at end of file
diff --git a/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.template.html b/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.template.html
index d8d99fe6ec4af5047b75192e98515ac582d3b843..1dd9791e0de3cbf35194f9f357cb5c2610dc33a6 100644
--- a/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.template.html
+++ b/src/atlasComponents/regionalFeatures/bsFeatures/kgRegionalFeature/kgRegList/kgRegList.template.html
@@ -1,50 +1,3 @@
-<mat-expansion-panel hideToggle>
-  <mat-expansion-panel-header class="align-items-center"
-    [attr.aria-label]="ARIA_LABELS.MODALITY_FILTER">
-    <div class="flex-grow-1 flex-shrink-1 d-flex flex-column">
-      <span>
-          Filter features
-      </span>
-      <small *ngIf="kgRegionalFeatures.length > 0" class="text-muted">
-        <ng-template [ngIf]="kgRegionalFeatures.length !== visibleRegionalFeatures.length"
-          [ngIfElse]="noFilterTmpl">
-          {{ visibleRegionalFeatures.length }} / {{ kgRegionalFeatures.length }}
-        </ng-template>
-        
-        <ng-template #noFilterTmpl>
-          {{ kgRegionalFeatures.length }} features
-        </ng-template>
-      </small>
-    </div>
-
-    <!-- filter icon -->
-    <ng-template [ngIf]="kgRegionalFeatures.length !== visibleRegionalFeatures.length"
-      [ngIfElse]="defaultFilterIconTmpl">
-
-      <button mat-icon-button
-        matTooltip="Reset filters"
-        color="primary"
-        iav-stop="click"
-        iav-delay-event="click"
-        (iav-delay-event-emit)="clearFilters()">
-        <i class="fas fa-filter"></i>
-      </button>
-    </ng-template>
-
-    <ng-template #defaultFilterIconTmpl>
-      <button mat-icon-button color="basic">
-        <i class="fas fa-filter"></i>
-      </button>
-    </ng-template>
-  </mat-expansion-panel-header>
-
-  <modality-picker class="max-h-10em overflow-y-auto overflow-x-hidden"
-    [countedDataM]="dataModalities"
-    (modalityFilterEmitter)="handleModalityVisbilityChange($event)">
-  </modality-picker>
-</mat-expansion-panel>
-
-
 <ng-container *ngTemplateOutlet="virtualScrollTmpl">
 </ng-container>
 
diff --git a/src/state/effects/viewerState.useEffect.ts b/src/state/effects/viewerState.useEffect.ts
index c3912a996beacbf8c46da9ff36c6d154134be3f1..0c96a3b9a43af9690294170bbd3950462aa2745d 100644
--- a/src/state/effects/viewerState.useEffect.ts
+++ b/src/state/effects/viewerState.useEffect.ts
@@ -400,7 +400,7 @@ export class ViewerStateControllerUseEffect implements OnDestroy {
           })
         }
 
-        const { position } = region
+        const position = region.position || (region?.props?.centroid_mm || []).map((v: number) => v*1e6)
         if (!position) {
           return generalActionError({
             message: `${region.name} - does not have a position defined`
diff --git a/src/viewerModule/viewerCmp/viewerCmp.component.ts b/src/viewerModule/viewerCmp/viewerCmp.component.ts
index ff22be0f407c5d114e0956686febae7d0e5c92c1..9c684f753b226855c80fd0592f8dd234359595fe 100644
--- a/src/viewerModule/viewerCmp/viewerCmp.component.ts
+++ b/src/viewerModule/viewerCmp/viewerCmp.component.ts
@@ -74,6 +74,10 @@ import { ContextMenuService, TContextMenuReg } from "src/contextMenuModule";
             of(null),
             svc.getRegionDetail(atlas['@id'], parcellation['@id'], template['@id'], r[0]).pipe(
               map(det => {
+                console.log('region detail', {
+                  id: r[0],
+                  det
+                })
                 return {
                   ...det,
                   context