diff --git a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
index 25faa42..0b200d6 100644
--- a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
+++ b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
@@ -5,36 +5,27 @@ import mops.gruppen2.domain.Exceptions.EventException;
 import mops.gruppen2.domain.Group;
 import mops.gruppen2.domain.Role;
 import mops.gruppen2.domain.User;
-import mops.gruppen2.domain.Visibility;
-import mops.gruppen2.domain.event.CreateGroupEvent;
-import mops.gruppen2.domain.event.UpdateRoleEvent;
 import mops.gruppen2.security.Account;
 import mops.gruppen2.service.*;
 import org.keycloak.adapters.springsecurity.token.KeycloakAuthenticationToken;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.*;
-import org.springframework.web.client.RestTemplate;
 import org.springframework.web.context.annotation.SessionScope;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.server.ResponseStatusException;
-
 import javax.annotation.security.RolesAllowed;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 
 @Controller
 @SessionScope
 @RequestMapping("/gruppen2")
 public class Gruppen2Controller {
 
-    @Autowired
     Gruppen2Config gruppen2Config;
-
     private final KeyCloakService keyCloakService;
     private final EventService eventService;
     private final GroupService groupService;
@@ -82,16 +73,31 @@ public class Gruppen2Controller {
                                @RequestParam(value = "title") String title,
                                @RequestParam(value = "beschreibung") String beschreibung,
                                @RequestParam(value = "visibility", required = false) Boolean visibility,
-                               @RequestParam(value = "file") MultipartFile file) throws IOException, EventException {
+                               @RequestParam(value = "file", required = false) MultipartFile file) throws IOException, EventException {
 
         Account account = keyCloakService.createAccountFromPrincipal(token);
-        List<User> userList = CsvService.read(file.getInputStream());
+        List<User> userList = new ArrayList<>();
+        if (!file.isEmpty()) {
+            userList = CsvService.read(file.getInputStream());
+        }
         visibility = visibility == null;
         controllerService.createLecture(account, title, beschreibung, visibility, userList);
 
         return "redirect:/gruppen2/";
     }
 
+    @RolesAllowed({"ROLE_orga", "ROLE_actuator)"})
+    @PostMapping("/details/members/addUsersFromCsv")
+    public String addUsersFromCsv(@RequestParam (value = "group_id") Long group_id,
+                                  @RequestParam(value = "file", required = false) MultipartFile file) throws IOException {
+        List<User> userList = new ArrayList<>();
+        if (!file.isEmpty()) {
+            userList = CsvService.read(file.getInputStream());
+        }
+        controllerService.addUserList(userList, group_id);
+        return "redirect:/gruppen2/details/members/" + group_id;
+    }
+
     @RolesAllowed({"ROLE_orga", "ROLE_studentin", "ROLE_actuator)"})
     @GetMapping("/createGroup")
     public String createGroup(KeycloakAuthenticationToken token, Model model) {
@@ -112,7 +118,6 @@ public class Gruppen2Controller {
         return "search";
     }
 
-
     @RolesAllowed({"ROLE_orga", "ROLE_studentin", "ROLE_actuator"})
     @PostMapping("/createGroup")
     public String pCreateGroup(KeycloakAuthenticationToken token,
@@ -196,6 +201,7 @@ public class Gruppen2Controller {
         Account account = keyCloakService.createAccountFromPrincipal(token);
         Group group = userService.getGroupById(id);
         if(group.getRoles().get(account.getName()) == Role.ADMIN) {
+            model.addAttribute("account", account);
             model.addAttribute("members", group.getMembers());
             model.addAttribute("group", group);
             model.addAttribute("admin", Role.ADMIN);
diff --git a/src/main/java/mops/gruppen2/service/ControllerService.java b/src/main/java/mops/gruppen2/service/ControllerService.java
index 7f84660..b7f03f2 100644
--- a/src/main/java/mops/gruppen2/service/ControllerService.java
+++ b/src/main/java/mops/gruppen2/service/ControllerService.java
@@ -1,7 +1,6 @@
 package mops.gruppen2.service;
 
 import mops.gruppen2.domain.*;
-
 import mops.gruppen2.domain.Exceptions.EventException;
 import mops.gruppen2.domain.event.*;
 import mops.gruppen2.security.Account;
@@ -15,7 +14,6 @@ import java.util.UUID;
 public class ControllerService {
 
     private final EventService eventService;
-
     private final UserService userService;
     private final InviteLinkRepositoryService inviteLinkRepositoryService;
 
@@ -25,20 +23,11 @@ public class ControllerService {
         this.inviteLinkRepositoryService = inviteLinkRepositoryService;
     }
 
-    /**
-     * Erzeugt eine neue Gruppe, fügt den User, der die Gruppe erstellt hat, hinzu und setzt seine Rolle als Admin fest.
-     * Zudem wird der Gruppentitel und die Gruppenbeschreibung erzeugt, welche vorher der Methode übergeben wurden.
-     * Aus diesen Event Objekten wird eine Liste erzeugt, welche daraufhin mithilfe des EventServices gesichert wird.
-     *
-     * @param account Keycloak-Account
-     * @param title Gruppentitel
-     * @param description Gruppenbeschreibung
-     */
     public void createGroup(Account account, String title, String description, Boolean visibility) throws EventException {
         Visibility visibility1;
         Long group_id = eventService.checkGroup();
 
-        if(visibility) {
+        if (visibility) {
             visibility1 = Visibility.PUBLIC;
         } else {
             visibility1 = Visibility.PRIVATE;
@@ -90,7 +79,7 @@ public class ControllerService {
             if(member.getUser_id().equals(user_id)) user = member;
         }
         assert user != null;
-        if(group.getRoles().get(user.getUser_id()) == Role.ADMIN) {
+        if (group.getRoles().get(user.getUser_id()) == Role.ADMIN) {
             updateRoleEvent = new UpdateRoleEvent(group_id, user.getUser_id(), Role.MEMBER);
         } else {
             updateRoleEvent = new UpdateRoleEvent(group_id, user.getUser_id(), Role.ADMIN);
@@ -132,6 +121,5 @@ public class ControllerService {
         updateDescription(account, group_id, description);
         updateRole(account.getName(), group_id);
         addUserList(users, group_id);
-
     }
 }
diff --git a/src/main/resources/templates/createLecture.html b/src/main/resources/templates/createLecture.html
index e6fb1e5..4325d66 100644
--- a/src/main/resources/templates/createLecture.html
+++ b/src/main/resources/templates/createLecture.html
@@ -7,6 +7,10 @@
     <title>Gruppenerstellung</title>
     <th:block th:fragment="headcontent">
         <!-- Links, Skripts, Styles hier einfügen! -->
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
+        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
     </th:block>
 </head>
 <body>
@@ -49,7 +53,7 @@
                         </div>
                         <div class="form-group pt-4">
                             <div class="row">
-                                <div class="col-10">
+                                <div class="col">
                                     <div class="custom-file">
                                         <input type="file" class="custom-file-input" id="file" th:name="file">
                                         <label class="custom-file-label" for="file">CSV Datei von Mitgliedern hochladen</label>
@@ -65,6 +69,13 @@
             </div>
         </div>
     </div>
+    <script>
+        // Add the following code if you want the name of the file appear on select
+        $(".custom-file-input").on("change", function() {
+            var fileName = $(this).val().split("\\").pop();
+            $(this).siblings(".custom-file-label").addClass("selected").html(fileName);
+        });
+    </script>
 </main>
 </body>
 </html>
\ No newline at end of file
diff --git a/src/main/resources/templates/detailsMember.html b/src/main/resources/templates/detailsMember.html
index a45d005..1298e46 100644
--- a/src/main/resources/templates/detailsMember.html
+++ b/src/main/resources/templates/detailsMember.html
@@ -30,36 +30,35 @@
 <main th:fragment="bodycontent">
     <div class="container-fluid">
         <div class="row">
-
             <div class="col-9 shadow-sm p-4" style="border: 10px solid aliceblue; background: aliceblue">
-                        <h1 style="color: black; font-weight: bold" th:text="${group.getTitle()}"></h1>
-                        <h3>
-                            <span class="badge badge-pill badge-dark" style="background: darkslategray" th:if='${group.getVisibility() == group.getVisibility().PRIVATE }'>Private Gruppe</span>
-                            <span class="badge badge-pill badge-primary" th:if="${group.getVisibility() == group.getVisibility().PUBLIC}">Öffentliche Gruppe</span>
-                            <span class="badge badge-pill badge-success" style="background: lightseagreen" th:if='${group.getType() == group.getType().LECTURE}'> Veranstaltung</span>
-                        </h3>
-                        <br>
-                        <div class="shadow-sm p-4" style="background: white">
-                            <p style="overflow-wrap: break-word" th:text="${group.getDescription()}"></p>
-                        </div>
-                    <br>
-                        <div class="text-right btn-toolbar" style="float: right" role="toolbar">
-                                <button class="btn btn-primary" style="background: dodgerblue; border: none; margin: 5px">
-                                    <a th:href="@{/gruppen2}" style="color: white">Zurück</a>
-                                </button>
-                                <form method="post" action="/gruppen2/leaveGroup">
-                                    <button th:value="${group.getId()}" th:name="group_id" class="btn btn-danger" type="submit" style="border-style: none; margin: 5px">Gruppe verlassen</button>
-                                </form>
-                        </div>
+                <h1 style="color: black; font-weight: bold" th:text="${group.getTitle()}"></h1>
+                <h3>
+                    <span class="badge badge-pill badge-dark" style="background: darkslategray" th:if='${group.getVisibility() == group.getVisibility().PRIVATE }'>Private Gruppe</span>
+                    <span class="badge badge-pill badge-primary" th:if="${group.getVisibility() == group.getVisibility().PUBLIC}">Öffentliche Gruppe</span>
+                    <span class="badge badge-pill badge-success" style="background: lightseagreen" th:if='${group.getType() == group.getType().LECTURE}'> Veranstaltung</span>
+                </h3>
+                <br>
+                <div class="shadow-sm p-4" style="background: white">
+                    <p style="overflow-wrap: break-word" th:text="${group.getDescription()}"></p>
+                </div>
+                <br>
+                <div class="text-right btn-toolbar" style="float: right" role="toolbar">
+                    <button class="btn btn-primary" style="background: dodgerblue; border: none; margin: 5px">
+                        <a th:href="@{/gruppen2}" style="color: white">Zurück</a>
+                    </button>
+                    <form method="post" action="/gruppen2/leaveGroup">
+                        <button th:value="${group.getId()}" th:name="group_id" class="btn btn-danger" type="submit" style="border-style: none; margin: 5px">Gruppe verlassen</button>
+                    </form>
+                </div>
             </div>
             <div class="col-3" style="white-space: nowrap">
                 <div style="display: inline-block; margin: 0">
                     <h2>Mitglieder</h2>
                     <div th:if='${group.getRoles().get(user.getUser_id()) == admin}'>
                         <form method="get" th:action="@{/gruppen2/details/members/{id}(id=${group.getId()})}">
-                                <button class="btn btn-secondary" style="background: slategrey; float: right" >
-                                    Mitglieder bearbeiten
-                                </button>
+                            <button class="btn btn-secondary" style="background: slategrey; float: right">
+                                Mitglieder bearbeiten
+                            </button>
                         </form>
                     </div>
                     <br>
diff --git a/src/main/resources/templates/detailsNoMember.html b/src/main/resources/templates/detailsNoMember.html
index afd346c..0b3a032 100644
--- a/src/main/resources/templates/detailsNoMember.html
+++ b/src/main/resources/templates/detailsNoMember.html
@@ -32,22 +32,22 @@
         <div class="row">
             <div class="col-9">
                 <div class="shadow-sm p-4" style="border: 10px solid aliceblue; background: aliceblue">
-                        <h1 style="color: black; font-weight: bold" th:text="${group.getTitle()}"></h1>
-                        <h3>
-                            <span class="badge badge-pill badge-dark" style="background: darkslategray" th:if='${group.getVisibility() == group.getVisibility().PRIVATE }'>Private Gruppe</span>
-                            <span class="badge badge-pill badge-primary" th:if="${group.getVisibility() == group.getVisibility().PUBLIC}">Öffentliche Gruppe</span>
-                            <span class="badge badge-pill badge-success" style="background: lightseagreen" th:if='${group.getType() == group.getType().LECTURE}'> Veranstaltung</span>
-                        </h3>
+                    <h1 style="color: black; font-weight: bold" th:text="${group.getTitle()}"></h1>
+                    <h3>
+                        <span class="badge badge-pill badge-dark" style="background: darkslategray" th:if='${group.getVisibility() == group.getVisibility().PRIVATE }'>Private Gruppe</span>
+                        <span class="badge badge-pill badge-primary" th:if="${group.getVisibility() == group.getVisibility().PUBLIC}">Öffentliche Gruppe</span>
+                        <span class="badge badge-pill badge-success" style="background: lightseagreen" th:if='${group.getType() == group.getType().LECTURE}'> Veranstaltung</span>
+                    </h3>
                     <div class="shadow-sm p-4" style="background: white">
                         <p style="overflow-wrap: break-word" th:text="${group.getDescription()}"></p>
                     </div>
-                        <div class="form-group">
-                            <div class="text-right">
-                                <form method="post" action="/gruppen2/detailsBeitreten">
-                                    <button type="submit" th:href="@{/gruppen2/detailsBeitreten(id=${group.getId()})}" th:name="id" th:value="${group.id}" class="btn btn-primary" style="border-style: none;">Gruppe beitreten</button>
-                                </form>
-                            </div>
+                    <div class="form-group">
+                        <div class="text-right">
+                            <form method="post" action="/gruppen2/detailsBeitreten">
+                                <button type="submit" th:href="@{/gruppen2/detailsBeitreten(id=${group.getId()})}" th:name="id" th:value="${group.id}" class="btn btn-primary" style="border-style: none;">Gruppe beitreten</button>
+                            </form>
                         </div>
+                    </div>
                 </div>
             </div>
         </div>
diff --git a/src/main/resources/templates/editMembers.html b/src/main/resources/templates/editMembers.html
index 1fbed6c..5c67b93 100644
--- a/src/main/resources/templates/editMembers.html
+++ b/src/main/resources/templates/editMembers.html
@@ -6,6 +6,10 @@
     <title>Gruppendetails</title>
     <th:block th:fragment="headcontent">
         <!-- Links, Skripts, Styles hier einfügen! -->
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
+        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
     </th:block>
 </head>
 <body>
@@ -21,6 +25,9 @@
             <li>
                 <a th:href="@{/gruppen2/findGroup}" href="/findGroup">Suche</a>
             </li>
+            <li th:if="${account.getRoles().contains('orga')}">
+                <a th:href="@{/gruppen2/createLecture}" href="/createLecture">Veranstaltung</a>
+            </li>
         </ul>
     </nav>
 </header>
@@ -29,6 +36,22 @@
         <div class="row">
             <div class="col-9">
                 <div class="shadow p-2" style="border: 10px solid aliceblue; background: aliceblue">
+                    <!-- absichern im controller nicht vergessen -->
+                    <div class="form-group pt-4" th:if="${account.getRoles().contains('orga')}">
+                        <form method="post" action="/gruppen2/details/members/addUsersFromCsv" enctype="multipart/form-data">
+                            <div class="row">
+                                <div class="col-9">
+                                    <div class="custom-file">
+                                        <input type="file" class="custom-file-input" id="file" th:name="file">
+                                        <label class="custom-file-label" for="file">CSV Datei von Mitgliedern hochladen</label>
+                                    </div>
+                                </div>
+                                <div class="col-3">
+                                    <button th:name="group_id" th:value="${group.getId()}" class="btn btn-primary" type="submit" style="background: #52a1eb; border-style: none">Mitglieder hinzufügen</button>
+                                </div>
+                            </div>
+                        </form>
+                    </div>
                     <table class="table">
                         <thead>
                         <tr>
@@ -67,4 +90,11 @@
             </div>
         </div>
     </div>
+    <script>
+        // Add the following code if you want the name of the file appear on select
+        $(".custom-file-input").on("change", function() {
+            var fileName = $(this).val().split("\\").pop();
+            $(this).siblings(".custom-file-label").addClass("selected").html(fileName);
+        });
+    </script>
 </main>
diff --git a/src/main/resources/templates/index.html b/src/main/resources/templates/index.html
index 5d51236..da57d1c 100644
--- a/src/main/resources/templates/index.html
+++ b/src/main/resources/templates/index.html
@@ -43,7 +43,6 @@
                     <br>
                     <div th:each="gruppe: ${gruppen}">
                         <div class="shadow-sm p-4" style="border: none; background: aliceblue">
-
                             <h3 style="color: dodgerblue; font-weight: bold;">
                                 <a th:href="@{/gruppen2/details/{id}(id=${gruppe.getId()})}" th:text="${gruppe.getTitle()}"></a>
                             </h3>