diff --git a/app/Activity/Resources/ActivityResource.php b/app/Activity/Resources/ActivityResource.php
index 54b38d05..4bf99653 100644
--- a/app/Activity/Resources/ActivityResource.php
+++ b/app/Activity/Resources/ActivityResource.php
@@ -55,6 +55,7 @@ class ActivityResource extends JsonResource
             'links' => [
                 'index' => route('activity.index'),
                 'create' => route('activity.create'),
+                'membership_masslist' => route('membership.masslist.index'),
             ],
         ];
     }
diff --git a/app/Group/Actions/ListAction.php b/app/Membership/Actions/MassListAction.php
similarity index 78%
rename from app/Group/Actions/ListAction.php
rename to app/Membership/Actions/MassListAction.php
index a2e89133..a148ec20 100644
--- a/app/Group/Actions/ListAction.php
+++ b/app/Membership/Actions/MassListAction.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Group\Actions;
+namespace App\Membership\Actions;
 
 use App\Activity;
 use App\Group;
@@ -8,14 +8,14 @@ use Inertia\Inertia;
 use Inertia\Response;
 use Lorisleiva\Actions\Concerns\AsAction;
 
-class ListAction
+class MassListAction
 {
     use AsAction;
 
     public function asController(): Response
     {
-        session()->put('menu', 'group');
-        session()->put('title', 'Gruppen');
+        session()->put('menu', 'activity');
+        session()->put('title', 'Mitgliedschaften zuweisen');
         $activities = Activity::with('subactivities')->get();
 
         return Inertia::render('group/Index', [
diff --git a/app/Membership/Actions/StoreForGroupAction.php b/app/Membership/Actions/MassStoreAction.php
similarity index 99%
rename from app/Membership/Actions/StoreForGroupAction.php
rename to app/Membership/Actions/MassStoreAction.php
index 37316eee..b5824bc8 100644
--- a/app/Membership/Actions/StoreForGroupAction.php
+++ b/app/Membership/Actions/MassStoreAction.php
@@ -14,7 +14,7 @@ use Illuminate\Support\Facades\DB;
 use Lorisleiva\Actions\ActionRequest;
 use Lorisleiva\Actions\Concerns\AsAction;
 
-class StoreForGroupAction
+class MassStoreAction
 {
     use AsAction;
     use TracksJob;
diff --git a/resources/js/layouts/AppLayout.vue b/resources/js/layouts/AppLayout.vue
index 12d3308e..1ba4fcb8 100644
--- a/resources/js/layouts/AppLayout.vue
+++ b/resources/js/layouts/AppLayout.vue
@@ -2,11 +2,13 @@
     <v-notification class="fixed z-40 right-0 bottom-0 mb-3 mr-3"></v-notification>
 
     <!-- ******************************** Sidebar ******************************** -->
-    <div class="fixed z-40 bg-gray-800 p-6 w-56 top-0 h-screen border-r border-gray-600 border-solid flex flex-col justify-between transition-all"
+    <div
+        class="fixed z-40 bg-gray-800 p-6 w-56 top-0 h-screen border-r border-gray-600 border-solid flex flex-col justify-between transition-all"
         :class="{
             '-left-[14rem]': !menuStore.isShifted,
             'left-0': menuStore.isShifted,
-        }">
+        }"
+    >
         <div class="grid gap-2">
             <v-link href="/" menu="dashboard" icon="loss">Dashboard</v-link>
             <v-link href="/member" menu="member" icon="user">Mitglieder</v-link>
@@ -14,7 +16,6 @@
             <v-link v-show="hasModule('bill')" href="/invoice" menu="invoice" icon="moneypaper">Rechnungen</v-link>
             <v-link href="/contribution" menu="contribution" icon="contribution">Zuschüsse</v-link>
             <v-link href="/activity" menu="activity" icon="activity">Tätigkeiten</v-link>
-            <v-link href="/group" menu="group" icon="group">Gruppen</v-link>
             <v-link href="/maildispatcher" menu="maildispatcher" icon="at">Mail-Verteiler</v-link>
         </div>
         <div class="grid gap-2">
@@ -31,7 +32,7 @@
 
 <script>
 import VLink from './_VLink.vue';
-import { menuStore } from '../stores/menuStore.js';
+import {menuStore} from '../stores/menuStore.js';
 import VNotification from '../components/VNotification.vue';
 
 export default {
diff --git a/resources/js/views/activity/VIndex.vue b/resources/js/views/activity/VIndex.vue
index 99e34120..d5051162 100644
--- a/resources/js/views/activity/VIndex.vue
+++ b/resources/js/views/activity/VIndex.vue
@@ -1,8 +1,8 @@
 <template>
     <page-layout page-class="pb-6">
         <template #toolbar>
-            <page-toolbar-button :href="meta.links.create" color="primary" icon="plus">Tätigkeit
-                erstellen</page-toolbar-button>
+            <page-toolbar-button :href="meta.links.create" color="primary" icon="plus">Tätigkeit erstellen</page-toolbar-button>
+            <page-toolbar-button :href="meta.links.membership_masslist" color="primary" icon="pencil">Mitgliedschaften zuweisen</page-toolbar-button>
         </template>
         <ui-popup v-if="deleting !== null" heading="Bitte bestätigen" @close="deleting = null">
             <div>
@@ -23,10 +23,8 @@
                 <td v-text="activity.name"></td>
                 <td>
                     <div class="flex space-x-1">
-                        <i-link v-tooltip="`Bearbeiten`" :href="activity.links.edit"
-                            class="inline-flex btn btn-warning btn-sm"><ui-sprite src="pencil"></ui-sprite></i-link>
-                        <a v-tooltip="`Entfernen`" href="#" class="inline-flex btn btn-danger btn-sm"
-                            @click.prevent="deleting = activity"><ui-sprite src="trash"></ui-sprite></a>
+                        <i-link v-tooltip="`Bearbeiten`" :href="activity.links.edit" class="inline-flex btn btn-warning btn-sm"><ui-sprite src="pencil"></ui-sprite></i-link>
+                        <a v-tooltip="`Entfernen`" href="#" class="inline-flex btn btn-danger btn-sm" @click.prevent="deleting = activity"><ui-sprite src="trash"></ui-sprite></a>
                     </div>
                 </td>
             </tr>
@@ -39,11 +37,11 @@
 </template>
 
 <script setup>
-import { ref, defineProps } from 'vue';
-import { indexProps, useIndex } from '../../composables/useIndex.js';
+import {ref, defineProps} from 'vue';
+import {indexProps, useIndex} from '../../composables/useIndex.js';
 
 const props = defineProps(indexProps);
-const { router, data, meta } = useIndex(props.data, 'activity');
+const {router, data, meta} = useIndex(props.data, 'activity');
 const deleting = ref(null);
 
 function remove() {
diff --git a/resources/js/views/group/Index.vue b/resources/js/views/group/Index.vue
index d817db85..ecbc9af9 100644
--- a/resources/js/views/group/Index.vue
+++ b/resources/js/views/group/Index.vue
@@ -29,7 +29,7 @@
 <script lang="js" setup>
 import { onBeforeUnmount, ref, defineProps, reactive, inject } from 'vue';
 import useQueueEvents from '../../composables/useQueueEvents.js';
-const {startListener, stopListener} = useQueueEvents('group', () => null);
+const { startListener, stopListener } = useQueueEvents('group', () => null);
 const axios = inject('axios');
 
 startListener();
@@ -86,7 +86,7 @@ async function setActivityId(id) {
 }
 
 async function submit() {
-    await axios.post('/api/membership/sync', {
+    await axios.post('/api/membership/masslist', {
         ...meta,
         members: selected.value,
     });
diff --git a/tests/Feature/Activity/IndexTest.php b/tests/Feature/Activity/IndexTest.php
index da2e8b60..5ff9e1b0 100644
--- a/tests/Feature/Activity/IndexTest.php
+++ b/tests/Feature/Activity/IndexTest.php
@@ -22,6 +22,7 @@ class IndexTest extends TestCase
         $this->assertInertiaHas('Local', $response, 'data.data.0.name');
         $this->assertInertiaHas(route('activity.update', ['activity' => $first]), $response, 'data.data.0.links.update');
         $this->assertInertiaHas(route('activity.destroy', ['activity' => $first]), $response, 'data.data.0.links.destroy');
+        $this->assertInertiaHas(route('membership.masslist.index'), $response, 'data.meta.links.membership_masslist');
         $this->assertCount(2, $this->inertia($response, 'data.data'));
     }