diff --git a/src/stories/files/FileMockLoadingRepository.ts b/src/stories/files/FileMockLoadingRepository.ts
index eff4bd897..949ad992c 100644
--- a/src/stories/files/FileMockLoadingRepository.ts
+++ b/src/stories/files/FileMockLoadingRepository.ts
@@ -1,12 +1,11 @@
 import { FileRepository } from '../../files/domain/repositories/FileRepository'
 import { File } from '../../files/domain/models/File'
 import { FilesCountInfo } from '../../files/domain/models/FilesCountInfo'
-import { FileUserPermissions } from '../../files/domain/models/FileUserPermissions'
-import { FileUserPermissionsMother } from '../../../tests/component/files/domain/models/FileUserPermissionsMother'
 import { DatasetVersion } from '../../dataset/domain/models/Dataset'
 import { FileCriteria } from '../../files/domain/models/FileCriteria'
+import { FileMockRepository } from './FileMockRepository'
 
-export class FileMockLoadingRepository implements FileRepository {
+export class FileMockLoadingRepository extends FileMockRepository implements FileRepository {
   getAllByDatasetPersistentId(
     // eslint-disable-next-line unused-imports/no-unused-vars
     datasetPersistentId: string,
@@ -26,7 +25,7 @@ export class FileMockLoadingRepository implements FileRepository {
     // eslint-disable-next-line unused-imports/no-unused-vars
     datasetVersion: DatasetVersion,
     // eslint-disable-next-line unused-imports/no-unused-vars
-    criteria: FileCriteria
+    criteria?: FileCriteria
   ): Promise<FilesCountInfo> {
     return new Promise(() => {
       setTimeout(() => {
@@ -34,27 +33,4 @@ export class FileMockLoadingRepository implements FileRepository {
       }, 1000)
     })
   }
-  // eslint-disable-next-line unused-imports/no-unused-vars
-  getUserPermissionsById(id: number): Promise<FileUserPermissions> {
-    return new Promise((resolve) => {
-      setTimeout(() => {
-        resolve(FileUserPermissionsMother.create())
-      }, 1000)
-    })
-  }
-
-  getFilesTotalDownloadSizeByDatasetPersistentId(
-    // eslint-disable-next-line unused-imports/no-unused-vars
-    datasetPersistentId: string,
-    // eslint-disable-next-line unused-imports/no-unused-vars
-    datasetVersion: DatasetVersion,
-    // eslint-disable-next-line unused-imports/no-unused-vars
-    criteria?: FileCriteria
-  ): Promise<number> {
-    return new Promise((resolve) => {
-      setTimeout(() => {
-        resolve(19900)
-      }, 1000)
-    })
-  }
 }
diff --git a/src/stories/files/FileMockNoDataRepository.ts b/src/stories/files/FileMockNoDataRepository.ts
index ba7c10a3b..51813c757 100644
--- a/src/stories/files/FileMockNoDataRepository.ts
+++ b/src/stories/files/FileMockNoDataRepository.ts
@@ -2,12 +2,11 @@ import { FileRepository } from '../../files/domain/repositories/FileRepository'
 import { File } from '../../files/domain/models/File'
 import { FilesCountInfo } from '../../files/domain/models/FilesCountInfo'
 import { FilesCountInfoMother } from '../../../tests/component/files/domain/models/FilesCountInfoMother'
-import { FileUserPermissions } from '../../files/domain/models/FileUserPermissions'
-import { FileUserPermissionsMother } from '../../../tests/component/files/domain/models/FileUserPermissionsMother'
 import { DatasetVersion } from '../../dataset/domain/models/Dataset'
 import { FileCriteria } from '../../files/domain/models/FileCriteria'
+import { FileMockRepository } from './FileMockRepository'
 
-export class FileMockNoDataRepository implements FileRepository {
+export class FileMockNoDataRepository extends FileMockRepository implements FileRepository {
   getAllByDatasetPersistentId(
     // eslint-disable-next-line unused-imports/no-unused-vars
     datasetPersistentId: string,
@@ -48,13 +47,4 @@ export class FileMockNoDataRepository implements FileRepository {
       }, 1000)
     })
   }
-
-  // eslint-disable-next-line unused-imports/no-unused-vars
-  getUserPermissionsById(id: number): Promise<FileUserPermissions> {
-    return new Promise((resolve) => {
-      setTimeout(() => {
-        resolve(FileUserPermissionsMother.create())
-      }, 1000)
-    })
-  }
 }
diff --git a/src/stories/files/FileMockNoFiltersRepository.ts b/src/stories/files/FileMockNoFiltersRepository.ts
index eec689eaa..2ce08e666 100644
--- a/src/stories/files/FileMockNoFiltersRepository.ts
+++ b/src/stories/files/FileMockNoFiltersRepository.ts
@@ -3,12 +3,11 @@ import { File } from '../../files/domain/models/File'
 import { FilesCountInfo } from '../../files/domain/models/FilesCountInfo'
 import { FilesCountInfoMother } from '../../../tests/component/files/domain/models/FilesCountInfoMother'
 import { FilesMockData } from './FileMockData'
-import { FileUserPermissions } from '../../files/domain/models/FileUserPermissions'
-import { FileUserPermissionsMother } from '../../../tests/component/files/domain/models/FileUserPermissionsMother'
 import { DatasetVersion } from '../../dataset/domain/models/Dataset'
 import { FileCriteria } from '../../files/domain/models/FileCriteria'
+import { FileMockRepository } from './FileMockRepository'
 
-export class FileMockNoFiltersRepository implements FileRepository {
+export class FileMockNoFiltersRepository extends FileMockRepository implements FileRepository {
   getAllByDatasetPersistentId(
     // eslint-disable-next-line unused-imports/no-unused-vars
     datasetPersistentId: string,
@@ -28,7 +27,7 @@ export class FileMockNoFiltersRepository implements FileRepository {
     // eslint-disable-next-line unused-imports/no-unused-vars
     datasetVersion: DatasetVersion,
     // eslint-disable-next-line unused-imports/no-unused-vars
-    criteria: FileCriteria
+    criteria?: FileCriteria
   ): Promise<FilesCountInfo> {
     return new Promise((resolve) => {
       setTimeout(() => {
@@ -36,27 +35,4 @@ export class FileMockNoFiltersRepository implements FileRepository {
       }, 1000)
     })
   }
-  // eslint-disable-next-line unused-imports/no-unused-vars
-  getUserPermissionsById(id: number): Promise<FileUserPermissions> {
-    return new Promise((resolve) => {
-      setTimeout(() => {
-        resolve(FileUserPermissionsMother.create())
-      }, 1000)
-    })
-  }
-
-  getFilesTotalDownloadSizeByDatasetPersistentId(
-    // eslint-disable-next-line unused-imports/no-unused-vars
-    datasetPersistentId: string,
-    // eslint-disable-next-line unused-imports/no-unused-vars
-    datasetVersion: DatasetVersion,
-    // eslint-disable-next-line unused-imports/no-unused-vars
-    criteria?: FileCriteria
-  ): Promise<number> {
-    return new Promise((resolve) => {
-      setTimeout(() => {
-        resolve(19900)
-      }, 1000)
-    })
-  }
 }
diff --git a/src/stories/files/FileMockRepository.ts b/src/stories/files/FileMockRepository.ts
index 63e1499fa..3086827c5 100644
--- a/src/stories/files/FileMockRepository.ts
+++ b/src/stories/files/FileMockRepository.ts
@@ -8,6 +8,7 @@ import { FileUserPermissionsMother } from '../../../tests/component/files/domain
 import { FileUserPermissions } from '../../files/domain/models/FileUserPermissions'
 import { DatasetVersion } from '../../dataset/domain/models/Dataset'
 import { FileCriteria } from '../../files/domain/models/FileCriteria'
+import { FileMother } from '../../../tests/component/files/domain/models/FileMother'
 
 export class FileMockRepository implements FileRepository {
   // eslint-disable-next-line unused-imports/no-unused-vars
@@ -59,4 +60,9 @@ export class FileMockRepository implements FileRepository {
       }, 1000)
     })
   }
+
+  // eslint-disable-next-line unused-imports/no-unused-vars
+  getMultipleFileDownloadUrl(ids: number[], downloadMode: string): string {
+    return FileMother.createDownloadUrl()
+  }
 }