diff --git a/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.style.css b/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.style.css
index 83724a58b2424c002d4b7e35eccc5e86befc6223..036aa20b5c752ca0e81fdd738603d32e521c3c29 100644
--- a/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.style.css
+++ b/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.style.css
@@ -21,3 +21,24 @@ readmore-component
 {
   width: 100%;
 }
+
+.h-carousel
+{
+  width: 100%;
+  overflow-x: auto;
+}
+
+.h-carousel > .h-carousel-item-container
+{
+  display: inline-flex;
+  height: 100%;
+  flex-wrap: nowrap;
+  flex-direction: row;
+}
+
+.h-carousel-item
+{
+  height: calc(100% - 2rem);
+  width: 16rem;
+  margin: 1rem 0.5rem;
+}
diff --git a/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.template.html b/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.template.html
index 5be2c5d7c37c1350cb91d4c057f7fbaaebb9225c..1c14d891f5f6f83876b7a06391e65d469769de0c 100644
--- a/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.template.html
+++ b/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.template.html
@@ -175,61 +175,72 @@
         [region]="region"
         #featureEntryCmp="featureEntryCmp">
       </sxplr-feature-entry>
-    </mat-tab>
-
-
-    <ng-template sxplrExperimentalFlag [experimental]="true"
-      #exmptRelatedFeat="sxplrExperimentalFlag"
-      [ngIf]="exmptRelatedFeat.show$ | async">
-    
-    <!-- related region features -->
-    <ng-template [ngIf]="relatedRegions$ | async | dedupRelatedRegionPipe" let-relatedRegions>
-      <ng-template [ngIf]="relatedRegions.length > 0">
 
-        <mat-tab>
-
-          <!-- tab label -->
-          <ng-template mat-tab-label>
-            <span>
-              Related Region Features
-            </span>
-          </ng-template>
+      
+      <ng-template sxplrExperimentalFlag [experimental]="true"
+        #exmptRelatedFeat="sxplrExperimentalFlag"
+        [ngIf]="exmptRelatedFeat.show$ | async">
     
-          <!-- tab-content -->
-          <mat-accordion>
-            
-            <mat-expansion-panel *ngFor="let relatedRegion of relatedRegions" hideToggle>
-              <mat-expansion-panel-header>
-                <mat-panel-title class="ws-no-wrap">
+      <!-- related region features -->
+      <ng-template [ngIf]="relatedRegions$ | async | dedupRelatedRegionPipe" let-relatedRegions>
+        <ng-template [ngIf]="relatedRegions.length > 0">
+
+          <div class="section-divider"></div>
+
+          <h2 class="sxplr-ml-2 mat-h4">Related Regions</h2>
+
+          <div class="h-carousel">
+            <div class="h-carousel-item-container">
+              <mat-card *ngFor="let relatedRegion of relatedRegions"
+                class="h-carousel-item mat-elevation-z4">
+                <mat-card-subtitle>
+                  {{ relatedRegion.qualification | translateQualificationPipe }}
+                </mat-card-subtitle>
+                <mat-card-title>
                   {{ relatedRegion.region.name }}
-                </mat-panel-title>
-                <mat-panel-description class="ws-no-wrap">
-                  {{ relatedRegion.parcellation.name }}
-                </mat-panel-description>
-              </mat-expansion-panel-header>
+                </mat-card-title>
+                <mat-card-subtitle>
+                  {{ relatedRegion.parcellation.name}}
+                </mat-card-subtitle>
+                <mat-card-actions>
+                  <button mat-button
+                    [sxplr-dialog]="relatedRegFeatTmpl"
+                    sxplr-dialog-size="auto">
+                    show features
+                  </button>
+                </mat-card-actions>
 
-              <ng-template matExpansionPanelContent>
                 
-                <div>
-                  Current region 
-                  <i>{{ region.name }}</i> {{ relatedRegion.qualification | translateQualificationPipe }}
-                  <i>{{ relatedRegion.region.name }}</i> in
-                  <b>{{ relatedRegion.parcellation.name }}</b>
-                </div>
-
-                <sxplr-feature-entry
-                  [parcellation]="relatedRegion.parcellation"
-                  [region]="relatedRegion.region">
-                </sxplr-feature-entry>
-
-              </ng-template>
-            </mat-expansion-panel>
-          </mat-accordion>
-        </mat-tab>
+                <ng-template #relatedRegFeatTmpl>
+                  <h2 mat-dialog-title>
+                    {{ relatedRegion.region.name }}
+                    {{ relatedRegion.parcellation.name }}
+                  </h2>
+
+                  <mat-dialog-content>
+                    <sxplr-feature-entry
+                      class="sxplr-d-block sxplr-mb-1"
+                      [parcellation]="relatedRegion.parcellation"
+                      [region]="relatedRegion.region">
+                    </sxplr-feature-entry>
+                  </mat-dialog-content>
+
+                  <!-- footer -->
+                  <mat-dialog-actions align="center">
+                    <button mat-button mat-dialog-close>close</button>
+                  </mat-dialog-actions>
+                </ng-template>
+
+              </mat-card>
+            </div>
+          </div>
+
+        </ng-template>
       </ng-template>
-    </ng-template>
 
-    </ng-template>
+      </ng-template>
+    </mat-tab>
+
   </mat-tab-group>
 
 </ng-template>
diff --git a/src/extra_styles.css b/src/extra_styles.css
index 2c01c2b2a82ba7e56f13353d55dd38de7f06dea1..bc64f55d732399ae2e092af87a79b18ee928bb01 100644
--- a/src/extra_styles.css
+++ b/src/extra_styles.css
@@ -846,12 +846,6 @@ quick-tour-unit svg
   stroke-linejoin: round;
 }
 
-sxplr-sapiviews-features-receptor-autoradiograph canvas
-{
-  max-width: 100%;
-  max-height: 100%;
-}
-
 how-to-cite img
 {
   width: 100%;
diff --git a/src/overwrite.scss b/src/overwrite.scss
index 5b17076e66aca6d569e24b3e6f5d0b6ab4c65f32..b4a9c686cf9575ce033aef5d83081f561cd711d5 100644
--- a/src/overwrite.scss
+++ b/src/overwrite.scss
@@ -324,3 +324,11 @@ button.#{$llb}
     }
   }
 }
+
+div.section-divider
+{
+  border-bottom-color: rgba(128, 128, 128, 0.5);
+  border-bottom-style: solid;
+  border-bottom-width: 1px;
+  margin: 3rem 1rem;
+}
\ No newline at end of file
diff --git a/src/state/atlasSelection/effects.spec.ts b/src/state/atlasSelection/effects.spec.ts
index 9ba912441b896aaf519a14893496e1db2beb9a27..9e4778613334f464a82d80ff34b97476e5346923 100644
--- a/src/state/atlasSelection/effects.spec.ts
+++ b/src/state/atlasSelection/effects.spec.ts
@@ -3,7 +3,7 @@ import { provideMockActions } from "@ngrx/effects/testing"
 import { Action } from "@ngrx/store"
 import { MockStore, provideMockStore } from "@ngrx/store/testing"
 import { hot } from "jasmine-marbles"
-import { ReplaySubject, of, throwError } from "rxjs"
+import { NEVER, ReplaySubject, of, throwError } from "rxjs"
 import { SAPI, SAPIModule } from "src/atlasComponents/sapi"
 import { SxplrRegion, SxplrAtlas, SxplrParcellation, SxplrTemplate } from "src/atlasComponents/sapi/sxplrTypes"
 import { IDS } from "src/atlasComponents/sapi/constants"
@@ -14,6 +14,7 @@ import { atlasSelection } from ".."
 import { BrowserAnimationsModule } from "@angular/platform-browser/animations"
 import { translateV3Entities } from "src/atlasComponents/sapi/translateV3"
 import { PathReturn } from "src/atlasComponents/sapi/typeV3"
+import { MatDialog } from "@angular/material/dialog"
 
 describe("> effects.ts", () => {
   describe("> Effect", () => {
@@ -90,7 +91,19 @@ describe("> effects.ts", () => {
         providers: [
           Effect,
           provideMockStore(),
-          provideMockActions(() => actions$)
+          provideMockActions(() => actions$),
+          {
+            provide: MatDialog,
+            useValue: {
+              open(){
+                return {
+                  afterClosed() {
+                    return NEVER
+                  }
+                }
+              }
+            }
+          },
         ]
       })
     })