diff --git a/backend/controllers/predefinedActivityController.js b/backend/controllers/predefinedActivityController.js
index a5d27e9..3fee1f7 100644
--- a/backend/controllers/predefinedActivityController.js
+++ b/backend/controllers/predefinedActivityController.js
@@ -1,9 +1,12 @@
 import predefinedActivityService from '../services/predefinedActivityService.js';
+import PredefinedActivityImage from '../models/PredefinedActivityImage.js';
+import path from 'path';
+import fs from 'fs';
 
 export const createPredefinedActivity = async (req, res) => {
     try {
-        const { name, description, durationText, duration } = req.body;
-        const predefinedActivity = await predefinedActivityService.createPredefinedActivity({ name, description, durationText, duration });
+        const { name, code, description, durationText, duration, imageLink } = req.body;
+        const predefinedActivity = await predefinedActivityService.createPredefinedActivity({ name, code, description, durationText, duration, imageLink });
         res.status(201).json(predefinedActivity);
     } catch (error) {
         console.error('[createPredefinedActivity] - Error:', error);
@@ -25,10 +28,11 @@ export const getPredefinedActivityById = async (req, res) => {
     try {
         const { id } = req.params;
         const predefinedActivity = await predefinedActivityService.getPredefinedActivityById(id);
+        const images = await PredefinedActivityImage.findAll({ where: { predefinedActivityId: id } });
         if (!predefinedActivity) {
             return res.status(404).json({ error: 'Predefined activity not found' });
         }
-        res.status(200).json(predefinedActivity);
+        res.status(200).json({ ...predefinedActivity.toJSON(), images });
     } catch (error) {
         console.error('[getPredefinedActivityById] - Error:', error);
         res.status(500).json({ error: 'Error fetching predefined activity' });
@@ -38,11 +42,22 @@ export const getPredefinedActivityById = async (req, res) => {
 export const updatePredefinedActivity = async (req, res) => {
     try {
         const { id } = req.params;
-        const { name, description, durationText, duration } = req.body;
-        const updatedActivity = await predefinedActivityService.updatePredefinedActivity(id, { name, description, durationText, duration });
+        const { name, code, description, durationText, duration, imageLink } = req.body;
+        const updatedActivity = await predefinedActivityService.updatePredefinedActivity(id, { name, code, description, durationText, duration, imageLink });
         res.status(200).json(updatedActivity);
     } catch (error) {
         console.error('[updatePredefinedActivity] - Error:', error);
         res.status(500).json({ error: 'Error updating predefined activity' });
     }
 };
+
+export const searchPredefinedActivities = async (req, res) => {
+    try {
+        const { q, limit } = req.query;
+        const result = await predefinedActivityService.searchPredefinedActivities(q, limit);
+        res.status(200).json(result);
+    } catch (error) {
+        console.error('[searchPredefinedActivities] - Error:', error);
+        res.status(500).json({ error: 'Error searching predefined activities' });
+    }
+};
diff --git a/backend/controllers/predefinedActivityImageController.js b/backend/controllers/predefinedActivityImageController.js
new file mode 100644
index 0000000..820228c
--- /dev/null
+++ b/backend/controllers/predefinedActivityImageController.js
@@ -0,0 +1,53 @@
+import PredefinedActivity from '../models/PredefinedActivity.js';
+import PredefinedActivityImage from '../models/PredefinedActivityImage.js';
+import { checkAccess } from '../utils/userUtils.js';
+import path from 'path';
+import fs from 'fs';
+import sharp from 'sharp';
+
+export const uploadPredefinedActivityImage = async (req, res) => {
+  try {
+    const { id } = req.params; // predefinedActivityId
+    const { authcode: userToken } = req.headers;
+    await checkAccess(userToken); // Club-Kontext ist hier nicht zwingend, falls gewünscht kann erweitert werden
+
+    const activity = await PredefinedActivity.findByPk(id);
+    if (!activity) {
+      return res.status(404).json({ error: 'Predefined activity not found' });
+    }
+
+    if (!req.file || !req.file.buffer) {
+      return res.status(400).json({ error: 'No image uploaded' });
+    }
+
+    const imagesDir = path.join('images', 'predefined');
+    if (!fs.existsSync(imagesDir)) {
+      fs.mkdirSync(imagesDir, { recursive: true });
+    }
+
+    const fileName = `${id}-${Date.now()}.jpg`;
+    const filePath = path.join(imagesDir, fileName);
+
+    await sharp(req.file.buffer)
+      .resize(800, 800, { fit: 'inside' })
+      .jpeg({ quality: 85 })
+      .toFile(filePath);
+
+    const imageRecord = await PredefinedActivityImage.create({
+      predefinedActivityId: id,
+      imagePath: filePath,
+      mimeType: 'image/jpeg',
+    });
+
+    // Optional: als imageLink am Activity-Datensatz setzen
+    activity.imageLink = `/api/predefined-activities/${id}/image/${imageRecord.id}`;
+    await activity.save();
+
+    res.status(201).json({ id: imageRecord.id, imageLink: activity.imageLink });
+  } catch (error) {
+    console.error('[uploadPredefinedActivityImage] - Error:', error);
+    res.status(500).json({ error: 'Failed to upload image' });
+  }
+};
+
+
diff --git a/backend/models/PredefinedActivity.js b/backend/models/PredefinedActivity.js
index 89f1253..749c6a5 100644
--- a/backend/models/PredefinedActivity.js
+++ b/backend/models/PredefinedActivity.js
@@ -11,6 +11,10 @@ const PredefinedActivity = sequelize.define('PredefinedActivity', {
         type: DataTypes.STRING,
         allowNull: false,
     },
+    code: {
+        type: DataTypes.STRING,
+        allowNull: true,
+    },
     description: {
         type: DataTypes.TEXT,
         allowNull: true,
@@ -23,6 +27,10 @@ const PredefinedActivity = sequelize.define('PredefinedActivity', {
         type: DataTypes.INTEGER,
         allowNull: true,
     },
+    imageLink: {
+        type: DataTypes.STRING,
+        allowNull: true,
+    },
 }, {
     tableName: 'predefined_activities',
     timestamps: true,
diff --git a/backend/models/PredefinedActivityImage.js b/backend/models/PredefinedActivityImage.js
new file mode 100644
index 0000000..c385931
--- /dev/null
+++ b/backend/models/PredefinedActivityImage.js
@@ -0,0 +1,30 @@
+import { DataTypes } from 'sequelize';
+import sequelize from '../database.js';
+
+const PredefinedActivityImage = sequelize.define('PredefinedActivityImage', {
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true,
+  },
+  predefinedActivityId: {
+    type: DataTypes.INTEGER,
+    allowNull: false,
+  },
+  imagePath: {
+    type: DataTypes.STRING,
+    allowNull: false,
+  },
+  mimeType: {
+    type: DataTypes.STRING,
+    allowNull: true,
+  },
+}, {
+  tableName: 'predefined_activity_images',
+  timestamps: true,
+  underscored: true,
+});
+
+export default PredefinedActivityImage;
+
+
diff --git a/backend/models/index.js b/backend/models/index.js
index 3f74910..f870a69 100644
--- a/backend/models/index.js
+++ b/backend/models/index.js
@@ -13,6 +13,7 @@ import DiaryDateTag from './DiaryDateTag.js';
 import DiaryMemberNote from './DiaryMemberNote.js';
 import DiaryMemberTag from './DiaryMemberTag.js';
 import PredefinedActivity from './PredefinedActivity.js';
+import PredefinedActivityImage from './PredefinedActivityImage.js';
 import DiaryDateActivity from './DiaryDateActivity.js';
 import Match from './Match.js';
 import League from './League.js';
@@ -76,6 +77,9 @@ DiaryDateActivity.belongsTo(DiaryDate, { foreignKey: 'diaryDateId', as: 'diaryDa
 
 PredefinedActivity.hasMany(DiaryDateActivity, { foreignKey: 'predefinedActivityId', as: 'predefinedActivities' });
 DiaryDateActivity.belongsTo(PredefinedActivity, { foreignKey: 'predefinedActivityId', as: 'predefinedActivity' });
+// PredefinedActivity Images
+PredefinedActivity.hasMany(PredefinedActivityImage, { foreignKey: 'predefinedActivityId', as: 'images' });
+PredefinedActivityImage.belongsTo(PredefinedActivity, { foreignKey: 'predefinedActivityId', as: 'predefinedActivity' });
 
 Club.hasMany(Match, { foreignKey: 'clubId', as: 'matches' });
 Match.belongsTo(Club, { foreignKey: 'clubId', as: 'club' });
@@ -198,6 +202,7 @@ export {
     DiaryMemberNote,
     DiaryMemberTag,
     PredefinedActivity,
+    PredefinedActivityImage,
     DiaryDateActivity,
     Match,
     League,
diff --git a/backend/routes/predefinedActivityRoutes.js b/backend/routes/predefinedActivityRoutes.js
index 9da53f9..e4ef704 100644
--- a/backend/routes/predefinedActivityRoutes.js
+++ b/backend/routes/predefinedActivityRoutes.js
@@ -4,13 +4,35 @@ import {
     getAllPredefinedActivities,
     getPredefinedActivityById,
     updatePredefinedActivity,
+    searchPredefinedActivities,
 } from '../controllers/predefinedActivityController.js';
+import multer from 'multer';
+import { authenticate } from '../middleware/authMiddleware.js';
+import { uploadPredefinedActivityImage } from '../controllers/predefinedActivityImageController.js';
+import PredefinedActivityImage from '../models/PredefinedActivityImage.js';
+import path from 'path';
+import fs from 'fs';
  
 const router = express.Router();
+const upload = multer({ storage: multer.memoryStorage() });
 
-router.post('/', createPredefinedActivity);
-router.get('/', getAllPredefinedActivities);
-router.get('/:id', getPredefinedActivityById);
-router.put('/:id', updatePredefinedActivity);
+router.post('/', authenticate, createPredefinedActivity);
+router.get('/', authenticate, getAllPredefinedActivities);
+router.get('/:id', authenticate, getPredefinedActivityById);
+router.put('/:id', authenticate, updatePredefinedActivity);
+router.post('/:id/image', authenticate, upload.single('image'), uploadPredefinedActivityImage);
+router.get('/search/query', authenticate, searchPredefinedActivities);
+router.get('/:id/image/:imageId', authenticate, async (req, res) => {
+  try {
+    const { id, imageId } = req.params;
+    const image = await PredefinedActivityImage.findOne({ where: { id: imageId, predefinedActivityId: id } });
+    if (!image) return res.status(404).json({ error: 'Image not found' });
+    if (!fs.existsSync(image.imagePath)) return res.status(404).json({ error: 'Image file missing' });
+    res.sendFile(path.resolve(image.imagePath));
+  } catch (e) {
+    console.error('[getPredefinedActivityImage] - Error:', e);
+    res.status(500).json({ error: 'Failed to fetch image' });
+  }
+});
 
 export default router;
diff --git a/backend/server.js b/backend/server.js
index 28f28f4..e17301b 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -6,7 +6,7 @@ import cors from 'cors';
 import {
   User, Log, Club, UserClub, Member, DiaryDate, Participant, Activity, MemberNote,
   DiaryNote, DiaryTag, MemberDiaryTag, DiaryDateTag, DiaryMemberNote, DiaryMemberTag,
-  PredefinedActivity, DiaryDateActivity, Match, League, Team, Group,
+  PredefinedActivity, PredefinedActivityImage, DiaryDateActivity, Match, League, Team, Group,
   GroupActivity, Tournament, TournamentGroup, TournamentMatch, TournamentResult,
   TournamentMember, Accident, UserToken
 } from './models/index.js';
@@ -88,6 +88,7 @@ app.get('*', (req, res) => {
     await DiaryMemberTag.sync({ alter: true });
     await DiaryMemberNote.sync({ alter: true });
     await PredefinedActivity.sync({ alter: true });
+    await PredefinedActivityImage.sync({ alter: true });
     await DiaryDateActivity.sync({ alter: true });
     await Season.sync({ alter: true });
     await League.sync({ alter: true });
diff --git a/backend/services/predefinedActivityService.js b/backend/services/predefinedActivityService.js
index aa6a688..5a023da 100644
--- a/backend/services/predefinedActivityService.js
+++ b/backend/services/predefinedActivityService.js
@@ -1,13 +1,16 @@
 import PredefinedActivity from '../models/PredefinedActivity.js';
+import { Op } from 'sequelize';
 
 class PredefinedActivityService {
     async createPredefinedActivity(data) {
         console.log('[PredefinedActivityService::createPredefinedActivity] - Creating predefined activity');
         return await PredefinedActivity.create({
             name: data.name,
+            code: data.code,
             description: data.description,
             durationText: data.durationText,
             duration: data.duration,
+            imageLink: data.imageLink,
         });
     }
 
@@ -20,9 +23,11 @@ class PredefinedActivityService {
         }
         return await activity.update({
             name: data.name,
+            code: data.code,
             description: data.description,
             durationText: data.durationText,
             duration: data.duration,
+            imageLink: data.imageLink,
         });
     }
 
@@ -40,6 +45,23 @@ class PredefinedActivityService {
         }
         return activity;
     }
+
+    async searchPredefinedActivities(query, limit = 20) {
+        const q = (query || '').trim();
+        if (!q || q.length < 2) {
+            return [];
+        }
+        return await PredefinedActivity.findAll({
+            where: {
+                [Op.or]: [
+                    { name: { [Op.like]: `%${q}%` } },
+                    { code: { [Op.like]: `%${q}%` } },
+                ],
+            },
+            order: [['name', 'ASC']],
+            limit: Math.min(parseInt(limit || 20, 10), 50),
+        });
+    }
 }
 
 export default new PredefinedActivityService();
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index 01fbe93..9bf1732 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -52,6 +52,10 @@
                 <span class="nav-icon">🏆</span>
                 Turniere
               </a>
+              <a href="/predefined-activities" class="nav-link">
+                <span class="nav-icon">⚙️</span>
+                Vordefinierte Aktivitäten
+              </a>
             </div>
           </nav>
 
diff --git a/frontend/src/router.js b/frontend/src/router.js
index cace9c4..4e2b143 100644
--- a/frontend/src/router.js
+++ b/frontend/src/router.js
@@ -11,6 +11,7 @@ import PendingApprovalsView from './views/PendingApprovalsView.vue';
 import ScheduleView from './views/ScheduleView.vue';
 import TournamentsView from './views/TournamentsView.vue';
 import TrainingStatsView from './views/TrainingStatsView.vue';
+import PredefinedActivities from './views/PredefinedActivities.vue';
 
 const routes = [
   { path: '/register', component: Register },
@@ -25,6 +26,7 @@ const routes = [
   { path: '/schedule', component: ScheduleView},
   { path: '/tournaments', component: TournamentsView },
   { path: '/training-stats', component: TrainingStatsView },
+  { path: '/predefined-activities', component: PredefinedActivities },
 ];
 
 const router = createRouter({
diff --git a/frontend/src/views/DiaryView.vue b/frontend/src/views/DiaryView.vue
index 49908eb..d686ae7 100644
--- a/frontend/src/views/DiaryView.vue
+++ b/frontend/src/views/DiaryView.vue
@@ -45,7 +45,7 @@
                 <button type="submit">Zeiten aktualisieren</button>
             </form>
         </div>
-        <div v-if="date !== 'new' && date !== null" style="overflow:hidden">
+        <div v-if="date !== 'new' && date !== null" style="overflow: visible">
             <div class="columns">
                 <div class="column">
                     <h3 v-if="showGeneralData">Gruppenverwaltung</h3>
@@ -84,7 +84,7 @@
                         </div>
                     </div>
                     <h3>Trainingsplan</h3>
-                    <div style="overflow: auto;">
+                    <div style="overflow-x: auto; overflow-y: visible; position: relative;">
                         <table>
                             <thead>
                                 <tr>
@@ -104,11 +104,11 @@
                                         <td>
                                             <span v-if="item.isTimeblock"><i>Zeitblock</i></span>
                                             <span v-else-if="editingActivityId === item.id">
-                                                <div style="display: flex; gap: 5px; align-items: center;">
+                                                <div style="display: flex; gap: 5px; align-items: center; position: relative;">
                                                     <input 
                                                         type="text" 
-                                                        :value="item.predefinedActivity ? item.predefinedActivity.name : item.activity"
-                                                        @input="item.activity = $event.target.value"
+                                                        v-model="editingActivityText"
+                                                        @input="onEditInputChangeText(item)"
                                                         @keyup.enter="saveActivityEdit(item)"
                                                         @keyup.esc="cancelActivityEdit"
                                                         ref="activityInput"
@@ -116,10 +116,18 @@
                                                     />
                                                     <button @click="saveActivityEdit(item)" class="btn-primary" style="padding: 2px 8px; font-size: 12px;">✓</button>
                                                     <button @click="cancelActivityEdit" class="btn-secondary" style="padding: 2px 8px; font-size: 12px;">✗</button>
+                                                    <div v-if="editShowDropdown && editSearchForId === item.id && editSearchResults.length" class="dropdown" style="max-height: 9.5em;">
+                                                        <div v-for="s in editSearchResults" :key="s.id" @click="chooseEditSuggestion(s, item)">
+                                                            <span v-if="s.code && s.code.trim() !== ''"><strong>[{{ s.name }}]</strong> </span>
+                                                        </div>
+                                                    </div>
                                                 </div>
                                             </span>
-                                            <span v-else @click="startActivityEdit(item)" class="clickable">
-                                                {{ item.predefinedActivity ? item.predefinedActivity.name : item.activity }}
+                                            <span v-else @click="startActivityEdit(item)" class="clickable activity-label"
+                                                 :title="item.predefinedActivity && item.predefinedActivity.name ? item.predefinedActivity.name : ''">
+                                                {{ (item.predefinedActivity && item.predefinedActivity.code && item.predefinedActivity.code.trim() !== '')
+                                                    ? item.predefinedActivity.code
+                                                    : (item.predefinedActivity ? item.predefinedActivity.name : item.activity) }}
                                             </span>
                                         </td>
                                         <td>{{ item.groupActivity ? item.groupActivity.name : '' }}</td>
@@ -134,7 +142,13 @@
                                         <tr>
                                             <td></td>
                                             <td></td>
-                                            <td>{{ groupItem.groupPredefinedActivity.name }}</td>
+                                            <td>
+                                                <span class="activity-label" :title="(groupItem.groupPredefinedActivity && groupItem.groupPredefinedActivity.name) ? groupItem.groupPredefinedActivity.name : ''">
+                                                    {{ (groupItem.groupPredefinedActivity && groupItem.groupPredefinedActivity.code && groupItem.groupPredefinedActivity.code.trim() !== '')
+                                                        ? groupItem.groupPredefinedActivity.code
+                                                        : groupItem.groupPredefinedActivity.name }}
+                                                </span>
+                                            </td>
                                             <td>{{ groupItem.groupsGroupActivity.name }}</td>
                                             <td></td>
                                             <td></td>
@@ -152,8 +166,17 @@
                                             @click="addGroupActivity">Gruppen-Aktivität</button>
                                     </td>
                                     <td v-if="addNewItem || addNewGroupActivity">
-                                        <input v-if="addtype === 'activity'" type="text" v-model="newPlanItem.activity"
-                                            placeholder="Aktivität / Zeitblock" required />
+                                        <div v-if="addtype === 'activity'" style="position: relative;">
+                                            <input type="text" v-model="newPlanItem.activity"
+                                                placeholder="Aktivität / Zeitblock" required
+                                                @input="onNewItemInputChange"
+                                            />
+                                            <div v-if="newItemShowDropdown && newItemSearchResults.length" class="dropdown" style="max-height: 9.5em;">
+                                                <div v-for="s in newItemSearchResults" :key="s.id" @click="chooseNewItemSuggestion(s)">
+                                                    <span v-if="s.code && s.code.trim() !== ''"><strong>[{{ s.code }}]</strong> </span>{{ s.name }}
+                                                </div>
+                                            </div>
+                                        </div>
                                     </td>
                                     <td v-else-if="addNewTimeblock">Zeitblock</td>
                                     <td v-if="addNewGroupActivity" colspan="2">
@@ -188,14 +211,16 @@
                         <div v-if="accidents.length > 0">
                         </div>
                     </div>
-                    <h3>Aktivitäten</h3>
-                    <textarea v-model="newActivity"></textarea>
-                    <button @click="addActivity">Aktivität hinzufügen</button>
-                    <ul>
-                        <li v-for="activity in activities" :key="activity.id">
-                            {{ activity.description }}
-                        </li>
-                    </ul>
+                    <h3 class="clickable" @click="toggleActivitiesBox">Aktivitäten <span>{{ showActivitiesBox ? '-' : '+' }}</span></h3>
+                    <div v-if="showActivitiesBox" class="collapsible-box">
+                        <textarea v-model="newActivity"></textarea>
+                        <button @click="addActivity">Aktivität hinzufügen</button>
+                        <ul>
+                            <li v-for="activity in activities" :key="activity.id">
+                                {{ activity.description }}
+                            </li>
+                        </ul>
+                    </div>
                     <multiselect v-model="selectedActivityTags" :options="availableTags" placeholder="Tags auswählen"
                         label="name" track-by="id" multiple :close-on-select="true" @tag="addNewTag"
                         @remove="removeActivityTag" :allow-empty="false" @keydown.enter.prevent="addNewTagFromInput" />
@@ -371,6 +396,16 @@ export default {
             },
             accidents: [],
             editingActivityId: null, // ID der Aktivität, die gerade bearbeitet wird
+            // Suche für Inline-Edit
+            editShowDropdown: false,
+            editSearchResults: [],
+            editSearchForId: null,
+            editingActivityText: '',
+            // Suche für Neue-Item-Eingabe
+            newItemShowDropdown: false,
+            newItemSearchResults: [],
+            // Aktivitäten-Box (rechts)
+            showActivitiesBox: false,
         };
     },
     watch: {
@@ -1141,12 +1176,13 @@ export default {
             this.$nextTick(() => {
                 this.$refs.activityInput.focus();
             });
+            this.editingActivityText = item.predefinedActivity ? item.predefinedActivity.name : item.activity || '';
         },
 
         async saveActivityEdit(item) {
             try {
                 await apiClient.put(`/diary-date-activities/${this.currentClub}/${item.id}`, {
-                    customActivityName: item.activity,
+                    customActivityName: this.editingActivityText,
                     duration: item.duration,
                     durationText: item.durationText,
                     groupId: item.groupId,
@@ -1156,11 +1192,61 @@ export default {
                 await this.loadTrainingPlan();
                 
                 this.editingActivityId = null;
+                this.editingActivityText = '';
             } catch (error) {
                 alert('Ein Fehler ist aufgetreten. Bitte versuchen Sie es erneut.');
             }
         },
 
+        async searchPredefinedActivities(term) {
+            if (!term || term.trim().length < 2) {
+                return [];
+            }
+            try {
+                const r = await apiClient.get('/predefined-activities/search/query', { params: { q: term, limit: 10 } });
+                return r.data || [];
+            } catch (e) {
+                return [];
+            }
+        },
+
+        async onEditInputChangeText(item) {
+            const term = this.editingActivityText;
+            this.editSearchForId = item.id;
+            if (!term || term.trim().length < 2) {
+                this.editShowDropdown = false;
+                this.editSearchResults = [];
+                return;
+            }
+            const results = await this.searchPredefinedActivities(term);
+            this.editSearchResults = results;
+            this.editShowDropdown = results.length > 0;
+        },
+
+        chooseEditSuggestion(s, item) {
+            this.editingActivityText = (s.code && s.code.trim() !== '') ? s.code : s.name;
+            this.editShowDropdown = false;
+            this.editSearchResults = [];
+        },
+
+        async onNewItemInputChange() {
+            const term = this.newPlanItem.activity;
+            if (!term || term.trim().length < 2) {
+                this.newItemShowDropdown = false;
+                this.newItemSearchResults = [];
+                return;
+            }
+            const results = await this.searchPredefinedActivities(term);
+            this.newItemSearchResults = results;
+            this.newItemShowDropdown = results.length > 0;
+        },
+
+        chooseNewItemSuggestion(s) {
+            this.newPlanItem.activity = (s.code && s.code.trim() !== '') ? s.code : s.name;
+            this.newItemShowDropdown = false;
+            this.newItemSearchResults = [];
+        },
+
         async loadTrainingPlan() {
             try {
                 this.trainingPlan = await apiClient.get(`/diary-date-activities/${this.currentClub}/${this.date.id}`).then(response => response.data);
@@ -1173,6 +1259,9 @@ export default {
         cancelActivityEdit() {
             this.editingActivityId = null;
         },
+        toggleActivitiesBox() {
+            this.showActivitiesBox = !this.showActivitiesBox;
+        },
     },
     async mounted() {
         await this.init();
@@ -1222,13 +1311,13 @@ h3 {
     display: flex;
     justify-content: space-between;
     width: calc(100% - 1em);
-    overflow: hidden;
+    overflow: visible;
     height: 100%;
 }
 
 .column:first-child {
     flex: 1;
-    overflow: hidden;
+    overflow: visible;
     height: 100%;
     justify-self: start;
     display: flex;
@@ -1305,9 +1394,30 @@ li {
     width: 100%;
 }
 
+.collapsible-box {
+    border: 1px solid var(--border-color);
+    border-radius: var(--border-radius);
+    padding: 0.5rem;
+    background: white;
+}
+
 table {
     width: 100%;
     border-collapse: collapse;
+    overflow: visible;
+}
+
+thead, tbody, tr, td, th {
+    overflow: visible;
+}
+
+td {
+    position: static;
+}
+
+/* Bearbeitungszelle soll relativer Kontext sein */
+.clickable, td > div[style*="position: relative"] {
+    position: relative;
 }
 
 th,
@@ -1339,7 +1449,7 @@ input[type="number"] {
     overflow-y: auto;
     position: absolute;
     background-color: white;
-    z-index: 1000;
+    z-index: 9999;
     width: calc(100% - 20px);
     box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
     max-width: 30em;
@@ -1465,7 +1575,7 @@ img {
 .diary {
     width: 100%;
     height: 100%;
-    overflow: hidden;
+    overflow: visible;
     display: flex;
     flex-direction: column;
 }
@@ -1491,4 +1601,33 @@ img {
     padding: 3px;
     background-color: #fff;
 }
+
+.collapsible-box {
+    border: 1px solid var(--border-color);
+    border-radius: var(--border-radius);
+    padding: 0.5rem;
+    background: white;
+}
+
+.collapsible-box h3 {
+    margin-top: 0;
+    margin-bottom: 10px;
+    cursor: pointer;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.collapsible-box h3 span {
+    font-size: 1.2em;
+    transition: transform 0.3s ease;
+}
+
+.collapsible-box.collapsed h3 span {
+    transform: rotate(0deg);
+}
+
+.collapsible-box.expanded h3 span {
+    transform: rotate(90deg);
+}
 </style>
diff --git a/frontend/src/views/PredefinedActivities.vue b/frontend/src/views/PredefinedActivities.vue
new file mode 100644
index 0000000..fff4a04
--- /dev/null
+++ b/frontend/src/views/PredefinedActivities.vue
@@ -0,0 +1,192 @@
+<template>
+  <div class="predef-activities">
+    <h2>Vordefinierte Aktivitäten</h2>
+    <div class="grid">
+      <div class="list">
+        <div class="toolbar">
+          <button @click="startCreate" class="btn-primary">Neu</button>
+          <button @click="reload" class="btn-secondary">Neu laden</button>
+        </div>
+        <ul class="items">
+          <li v-for="a in activities" :key="a.id" :class="{ active: selectedActivity && selectedActivity.id === a.id }" @click="select(a)">
+            <div class="title">
+              <strong>{{ a.code ? '[' + a.code + '] ' : '' }}{{ a.name }}</strong>
+            </div>
+            <div class="meta">
+              <span v-if="a.duration">{{ a.duration }} min</span>
+              <span v-if="a.durationText"> ({{ a.durationText }})</span>
+            </div>
+          </li>
+        </ul>
+      </div>
+
+      <div class="detail" v-if="editModel">
+        <h3>{{ editModel.id ? 'Aktivität bearbeiten' : 'Neue Aktivität' }}</h3>
+        <form @submit.prevent="save">
+          <label>Name
+            <input type="text" v-model="editModel.name" required />
+          </label>
+          <label>Kürzel
+            <input type="text" v-model="editModel.code" />
+          </label>
+          <label>Dauer (Minuten)
+            <input type="number" v-model.number="editModel.duration" min="0" />
+          </label>
+          <label>Dauer (Text)
+            <input type="text" v-model="editModel.durationText" placeholder="z.B. 2x7" />
+          </label>
+          <label>Beschreibung
+            <textarea v-model="editModel.description" rows="4" />
+          </label>
+          <label>Bild-Link (optional)
+            <input type="text" v-model="editModel.imageLink" placeholder="/api/predefined-activities/:id/image/:imageId oder extern" />
+          </label>
+
+          <div class="actions">
+            <button type="submit" class="btn-primary">Speichern</button>
+            <button type="button" class="btn-secondary" @click="cancel">Abbrechen</button>
+          </div>
+        </form>
+
+        <div v-if="editModel.id" class="images">
+          <h4>Bild hochladen</h4>
+          <input type="file" accept="image/*" @change="onFileChange" />
+          <button class="btn-secondary" :disabled="!selectedFile" @click="uploadImage">Hochladen</button>
+
+          <div class="image-list" v-if="images && images.length">
+            <div v-for="img in images" :key="img.id" class="image-item">
+              <img :src="imageUrl(img)" alt="Activity Image" />
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import apiClient from '../apiClient.js';
+
+export default {
+  name: 'PredefinedActivities',
+  data() {
+    return {
+      activities: [],
+      selectedActivity: null,
+      editModel: null,
+      images: [],
+      selectedFile: null,
+    };
+  },
+  methods: {
+    async reload() {
+      const r = await apiClient.get('/predefined-activities');
+      this.activities = r.data;
+    },
+    async select(a) {
+      this.selectedActivity = a;
+      const r = await apiClient.get(`/predefined-activities/${a.id}`);
+      const { images, ...activity } = r.data;
+      this.images = images || [];
+      this.editModel = { ...activity };
+    },
+    startCreate() {
+      this.selectedActivity = null;
+      this.images = [];
+      this.editModel = {
+        name: '',
+        code: '',
+        description: '',
+        duration: null,
+        durationText: '',
+        imageLink: '',
+      };
+    },
+    cancel() {
+      this.editModel = null;
+      this.selectedActivity = null;
+      this.images = [];
+    },
+    async save() {
+      if (!this.editModel) return;
+      if (this.editModel.id) {
+        const { id, ...payload } = this.editModel;
+        const r = await apiClient.put(`/predefined-activities/${id}`, payload);
+        this.editModel = r.data;
+      } else {
+        const r = await apiClient.post('/predefined-activities', this.editModel);
+        this.editModel = r.data;
+      }
+      await this.reload();
+    },
+    onFileChange(e) {
+      this.selectedFile = e.target.files && e.target.files[0] ? e.target.files[0] : null;
+    },
+    imageUrl(img) {
+      return `/api/predefined-activities/${this.editModel.id}/image/${img.id}`;
+    },
+    async uploadImage() {
+      if (!this.editModel || !this.editModel.id || !this.selectedFile) return;
+      const fd = new FormData();
+      fd.append('image', this.selectedFile);
+      await apiClient.post(`/predefined-activities/${this.editModel.id}/image`, fd, {
+        headers: { 'Content-Type': 'multipart/form-data' }
+      });
+      // Nach Upload Details neu laden
+      await this.select(this.editModel);
+      this.selectedFile = null;
+    }
+  },
+  async mounted() {
+    await this.reload();
+  }
+}
+</script>
+
+<style scoped>
+.predef-activities {
+  display: flex;
+  flex-direction: column;
+}
+.grid {
+  display: grid;
+  grid-template-columns: 320px 1fr;
+  gap: 1rem;
+}
+.list {
+  background: white;
+  border: 1px solid var(--border-color);
+  border-radius: var(--border-radius);
+  padding: 0.5rem;
+}
+.toolbar {
+  display: flex;
+  gap: 0.5rem;
+  margin-bottom: 0.5rem;
+}
+.items {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+}
+.items li {
+  padding: 0.5rem;
+  border-radius: var(--border-radius-small);
+  cursor: pointer;
+}
+.items li:hover { background: var(--primary-light);
+}
+.items li.active { background: var(--primary-light); color: var(--primary-color); }
+.detail {
+  background: white;
+  border: 1px solid var(--border-color);
+  border-radius: var(--border-radius);
+  padding: 0.75rem;
+}
+label { display: block; margin-bottom: 0.5rem; }
+input[type="text"], input[type="number"], textarea { width: 100%; }
+.actions { margin-top: 0.75rem; display: flex; gap: 0.5rem; }
+.image-list { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }
+.image-item img { max-height: 120px; border: 1px solid var(--border-color); border-radius: var(--border-radius-small); }
+</style>
+