diff --git a/dav_base/static/dav_base/css/local.css b/dav_base/static/dav_base/css/local.css
index f93b5c8..30db908 100644
--- a/dav_base/static/dav_base/css/local.css
+++ b/dav_base/static/dav_base/css/local.css
@@ -1,3 +1,6 @@
+/*
+ * General elements
+ */
 html, body {
     height: 100%;
 }
@@ -7,6 +10,13 @@ thead input {
 	padding: 3px;
 }
 
+/*
+ * Specific areas
+ */
+
+/*
+ * Whole Page
+ */
 #page {
     position: relative;
     min-height: 100%;
@@ -14,6 +24,9 @@ thead input {
     height: 100%;
 }
 
+/*
+ * Page Header
+ */
 #page-header {
     /* position: relative; */
     padding-top: 0.6rem;
@@ -48,26 +61,29 @@ thead input {
     float: right;
 }
 
+/*
+ * Messages
+ */
 #messages div.alert {
     margin-top: 1.2rem;
     margin-bottom: 0rem;
 }
 
+/*
+ * Page Body
+ */
 #page-body {
-    padding-top: 2.4rem;
     padding-bottom: 4.8rem;
 }
 
-#page-body h3 {
-    margin-top: -1rem;
-    margin-bottom: 1.5rem;
-}
-
 #page-body h5 {
     margin-top: 0px;
     font-weight: bold;
 }
 
+/*
+ * Page footer
+ */
 #page-footer {
     position: absolute;
     bottom: 0px;
@@ -95,6 +111,24 @@ thead input {
     color: #e3e3e3;
 }
 
+/*
+ * Misc
+ */
+.container > .jumbotron,
+.container-fluid > .jumbotron {
+    margin-top: 2.4rem;
+}
+
 .action-tabs {
+    margin-top: 2.4rem;
     margin-bottom: 1.2rem;
 }
+
+.panel-heading h3, .panel-heading h4 {
+    font-wight: inherit;
+    line-height: inherit;
+}
+
+.panel-group .panel-footer {
+    border-top: 1px solid #ddd;
+}
\ No newline at end of file
diff --git a/dav_base/templates/dav_base/base.html b/dav_base/templates/dav_base/base.html
index 6d1e909..058cc21 100644
--- a/dav_base/templates/dav_base/base.html
+++ b/dav_base/templates/dav_base/base.html
@@ -21,8 +21,7 @@
     {{ form.media }}
     {% endblock head-media %}
 
-    {% block head-additional %}
-    {% endblock head-additional %}
+    {% block head-additional %}{% endblock %}
 
     <title>
         {% block head-title %}Alpenverein Karlsruhe{% endblock head-title %}
@@ -48,16 +47,13 @@
     </div>
 
     <div id="page-body">
-        {% block modals %}
-        {% endblock modals %}
+        {% block modals %}{% endblock %}
 	    {% block page-body %}
         <div class="container-fluid">
-            {% block page-container-fluid %}
-            {% endblock page-container-fluid %}
+            {% block page-container-fluid %}{% endblock %}
         </div>
         <div class="container">
-            {% block page-container %}
-            {% endblock page-container %}
+            {% block page-container %}{% endblock %}
         </div>
 	    {% endblock page-body %}
     </div>
diff --git a/dav_events/forms/events.py b/dav_events/forms/events.py
index 44d50cd..06d0553 100644
--- a/dav_events/forms/events.py
+++ b/dav_events/forms/events.py
@@ -86,6 +86,63 @@ class EventListExportForm(forms.Form):
 
 
 class EventUpdateForm(forms.ModelForm):
+    requirements = forms.CharField(required=False,
+                                   label=_(u'Anforderungen / Voraussetzungen'),
+                                   widget=forms.Textarea(attrs={'rows': 2}))
+
+    equipment = forms.CharField(required=False,
+                                label=_(u'Ausrüstung'),
+                                widget=forms.Textarea(attrs={'rows': 2}))
+
+    registration_howto = forms.CharField(required=False,
+                                         label=_(u'Anmeldungshinweis'),
+                                         widget=forms.Textarea(attrs={'rows': 2}))
+
+    course_topic_1 = forms.CharField(required=False,
+                                     label=u'%s - %s 1' % (_(u'Kursinhalt'), _(u'Absatz')),
+                                     widget=forms.Textarea(attrs={'rows': 2}))
+    course_topic_2 = forms.CharField(required=False,
+                                     label=u'%s - %s 2' % (_(u'Kursinhalt'), _(u'Zeile')),
+                                     widget=forms.TextInput())
+    course_topic_3 = forms.CharField(required=False,
+                                     label=u'%s - %s 3' % (_(u'Kursinhalt'), _(u'Zeile')),
+                                     widget=forms.TextInput())
+    course_topic_4 = forms.CharField(required=False,
+                                     label=u'%s - %s 4' % (_(u'Kursinhalt'), _(u'Zeile')),
+                                     widget=forms.TextInput())
+    course_topic_5 = forms.CharField(required=False,
+                                     label=u'%s - %s 5' % (_(u'Kursinhalt'), _(u'Zeile')),
+                                     widget=forms.TextInput())
+    course_topic_6 = forms.CharField(required=False,
+                                     label=u'%s - %s 6' % (_(u'Kursinhalt'), _(u'Zeile')),
+                                     widget=forms.TextInput())
+
+    course_goal_1 = forms.CharField(required=False,
+                                    label=u'%s - %s 1' % (_(u'Kursziel'), _(u'Absatz')),
+                                    widget=forms.Textarea(attrs={'rows': 2}))
+    course_goal_2 = forms.CharField(required=False,
+                                    label=u'%s - %s 2' % (_(u'Kursziel'), _(u'Zeile')),
+                                    widget=forms.TextInput())
+    course_goal_3 = forms.CharField(required=False,
+                                    label=u'%s - %s 3' % (_(u'Kursziel'), _(u'Zeile')),
+                                    widget=forms.TextInput())
+    course_goal_4 = forms.CharField(required=False,
+                                    label=u'%s - %s 4' % (_(u'Kursziel'), _(u'Zeile')),
+                                    widget=forms.TextInput())
+    course_goal_5 = forms.CharField(required=False,
+                                    label=u'%s - %s 5' % (_(u'Kursziel'), _(u'Zeile')),
+                                    widget=forms.TextInput())
+    course_goal_6 = forms.CharField(required=False,
+                                    label=u'%s - %s 6' % (_(u'Kursziel'), _(u'Zeile')),
+                                    widget=forms.TextInput())
+
+    description = forms.CharField(label=_(u'Beschreibung'),
+                                  widget=forms.Textarea(attrs={'rows': 5}))
+
+    internal_note = forms.CharField(required=False,
+                                    label=_(u'Bearbeitungshinweis'),
+                                    widget=forms.Textarea(attrs={'rows': 5}))
+
     class Meta:
         model = models.Event
         fields = '__all__'
diff --git a/dav_events/models/event.py b/dav_events/models/event.py
index 89112f0..dc44722 100644
--- a/dav_events/models/event.py
+++ b/dav_events/models/event.py
@@ -20,9 +20,6 @@ from .. import signals
 from ..utils import get_ghost_user
 from ..workflow import DefaultWorkflow
 
-from .eventflag import EventFlag
-from .eventstatus import EventStatus, get_or_create_event_status
-
 
 logger = logging.getLogger(__name__)
 
diff --git a/dav_events/templates/dav_events/event_create/LocationForm.html b/dav_events/templates/dav_events/event_create/LocationForm.html
index e0798d3..76d6f56 100644
--- a/dav_events/templates/dav_events/event_create/LocationForm.html
+++ b/dav_events/templates/dav_events/event_create/LocationForm.html
@@ -14,7 +14,6 @@
         {% bootstrap_field form.location %}
     </div>
 </div>
-<div class="row">&nbsp;</div>
 <div class="row">
     <div class="col-sm-12">
         <h3>An- und Abreise - Teil 1</h3>
diff --git a/dav_events/templates/dav_events/event_update_form.html b/dav_events/templates/dav_events/event_update_form.html
index fc0a34f..064a847 100644
--- a/dav_events/templates/dav_events/event_update_form.html
+++ b/dav_events/templates/dav_events/event_update_form.html
@@ -4,6 +4,35 @@
 
 {% block head-title %}{{ event }} - {{ block.super }}{% endblock head-title %}
 
+{% block head-additional %}
+<script type="text/javascript">
+    function nextAccordionPanel(event) {
+        var sender = $(event.srcElement);
+        var current_panel = sender.closest(".panel");
+        var next_panel = current_panel.next();
+        var current_collapse =  sender.closest(".panel-collapse");
+        var next_collapse = next_panel.find(".panel-collapse");
+        current_collapse.collapse("hide");
+        next_collapse.collapse("show");
+        $('html, body').animate({
+            scrollTop: current_collapse.offset().top
+        },'slow');
+    }
+    function previousAccordionPanel(event) {
+        var sender = $(event.srcElement);
+        var current_panel = sender.closest(".panel");
+        var previous_panel = current_panel.prev();
+        var current_collapse =  sender.closest(".panel-collapse");
+        var previous_collapse = previous_panel.find(".panel-collapse");
+        current_collapse.collapse("hide");
+        previous_collapse.collapse("show");
+        $('html, body').animate({
+            scrollTop: previous_panel.offset().top
+        },'slow');
+    }
+</script>
+{% endblock head-additional %}
+
 {% block page-container-fluid %}
 <div class="action-tabs">
     <ul class="nav nav-tabs" role="tablist">
@@ -40,10 +69,458 @@
     </div>
     {% endif %}
 
+    {% if form.errors %}
+    <div class="alert alert-danger">
+        Bitte überprüfe deine Eingaben!
+        {{ form.non_field_errors }}
+        <ul>
+            {% for field in form %}
+            {% if field.errors %}
+            <li>
+                {{ field.label }}:
+                {{ field.errors }}
+            </li>
+            {% endif %}
+            {% endfor %}
+        </ul>
+    </div>
+    {% endif %}
+
     <div class="panel panel-default">
-        <div class="panel-heading"><h4 class="panel-title">{{ event }}</h4></div>
+        <div class="panel-heading"><h3 class="panel-title">{{ event }}</h3></div>
         <div class="panel-body">
-            {% bootstrap_form form layout='horizontal' %}
+            <div class="panel-group" id="form-accordion" role="tablist" aria-multiselectable="true">
+                <div class="panel panel-default">
+                    <div id="headingModusForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseModusForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseModusForm">
+                                Veranstaltungsmodus / Termin
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseModusForm" class="panel-collapse collapse{% if decollapseModusForm or decollapseAllForms or decollapseFirstForm %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingModusForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-4">
+                                    {% bootstrap_field form.mode %}
+                                </div>
+                                <div class="col-sm-4">
+                                    {% bootstrap_field form.sport %}
+                                </div>
+                                <div class="col-sm-4">
+                                    <div class="row">
+                                        <div class="col-sm-12">
+                                            {% bootstrap_field form.level %}
+                                        </div>
+                                        <div class="col-sm-12">
+                                            {% bootstrap_field form.ski_lift %}
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.first_day %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.last_day %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.alt_first_day %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.alt_last_day %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingLocationForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseLocationForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseLocationForm">
+                                Ort
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseLocationForm" class="panel-collapse collapse{% if decollapseLocationForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingLocationForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.country %}
+                                    {% bootstrap_field form.terrain %}
+                                    {% bootstrap_field form.location %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingJourneyForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseJourneyForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseJourneyForm">
+                                An- und Abreise
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseJourneyForm" class="panel-collapse collapse{% if decollapseJourneyForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingJourneyForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.transport %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.transport_other %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.meeting_point %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.meeting_point_other %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.meeting_time %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.departure_time %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.departure_ride %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.return_departure_time %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.return_arrival_time %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.arrival_previous_day %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingAccommodationForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseAccommodationForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseAccommodationForm">
+                                Unterkunft
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseAccommodationForm" class="panel-collapse collapse{% if decollapseAccommodationForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingAccommodationForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.basecamp %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.accommodation %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.accommodation_other %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.meals %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.meals_other %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingRequirementsForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseRequirementsForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseRequirementsForm">
+                                Voraussetzungen / Vorbedingungen
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseRequirementsForm" class="panel-collapse collapse{% if decollapseRequirementsForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingRequirementsForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.requirements %}
+                                    {% bootstrap_field form.equipment %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.pre_meeting_1 %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.pre_meeting_2 %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingTrainerForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseTrainerForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseTrainerForm">
+                                Tourenleitung
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseTrainerForm" class="panel-collapse collapse{% if decollapseTrainerForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingTrainerForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.trainer_firstname %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.trainer_familyname %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.trainer_email %}
+                                </div>
+                                <div class="col-sm-6">
+                                    {% bootstrap_field form.trainer_phone %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.trainer_2_fullname %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.trainer_3_fullname %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingRegistrationForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseRegistrationForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseRegistrationForm">
+                                Teilnehmer / Anmeldung
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseRegistrationForm" class="panel-collapse collapse{% if decollapseRegistrationForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingRegistrationForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    <label>{% trans 'Teilnehmerzahl' %}</label> (0 = {% trans 'unreglementiert' %})
+                                    <div class="row">
+                                    <div class="col-sm-6">
+                                        {% bootstrap_field form.min_participants %}
+                                    </div>
+                                    <div class="col-sm-6">
+                                        {% bootstrap_field form.max_participants %}
+                                    </div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-3">
+                                    <label>{% trans 'Anmeldung' %}</label>
+                                    {% bootstrap_field form.registration_required %}
+                                </div>
+                                <div class="col-sm-9">
+                                    <div class="row registration_settings">
+                                        <div class="col-sm-12">
+                                            {% bootstrap_field form.deadline %}
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="row registration_settings">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.registration_howto %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingChargesForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseChargesForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseChargesForm">
+                                Kosten
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseChargesForm" class="panel-collapse collapse{% if decollapseChargesForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingChargesForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.charge %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.additional_costs %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingTrainingForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseTrainingForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseTrainingForm">
+                                Kursinhalte / Kursziele
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseTrainingForm" class="panel-collapse collapse{% if decollapseTrainingForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingTrainingForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.course_topic_1 %}
+                                    {% bootstrap_field form.course_topic_2 %}
+                                    {% bootstrap_field form.course_topic_3 %}
+                                    {% bootstrap_field form.course_topic_4 %}
+                                    {% bootstrap_field form.course_topic_5 %}
+                                    {% bootstrap_field form.course_topic_6 %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.course_goal_1 %}
+                                    {% bootstrap_field form.course_goal_2 %}
+                                    {% bootstrap_field form.course_goal_3 %}
+                                    {% bootstrap_field form.course_goal_4 %}
+                                    {% bootstrap_field form.course_goal_5 %}
+                                    {% bootstrap_field form.course_goal_6 %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingDescriptionForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseDescriptionForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseDescriptionForm">
+                                Titel / Beschreibung
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseDescriptionForm" class="panel-collapse collapse{% if decollapseDescriptionForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingDescriptionForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.title %}
+                                    {% bootstrap_field form.description %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="nextAccordionPanel(event)">{% trans 'Nächster Abschnitt' %} {% bootstrap_icon 'arrow-down' %}</a>
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+                <div class="panel panel-default">
+                    <div id="headingWorkflowForm" class="panel-heading" role="tab">
+                        <h4 class="panel-title">
+                            <a role="button" href="#collapseWorkflowForm" data-toggle="collapse" data-parent="#accordion"
+                               aria-expanded="true" aria-controls="collapseWorkflowForm">
+                                Bearbeitungshinweis / Workflow
+                            </a>
+                        </h4>
+                    </div>
+                    <div id="collapseWorkflowForm" class="panel-collapse collapse{% if decollapseWorkflowForm or decollapseAllForms %} in{% endif %}"
+                         role="tabpanel" aria-labelledby="headingWorkflowForm">
+                        <div class="panel-body">
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.internal_note %}
+                                </div>
+                            </div>
+                            <div class="row">
+                                <div class="col-sm-12">
+                                    {% bootstrap_field form.planned_publication_date %}
+                                    {% bootstrap_field form.number %}
+                                    {% bootstrap_field form.owner %}
+                                </div>
+                            </div>
+                        </div>
+                        <div class="panel-footer">
+                            <a class="btn btn-default" href="#" onclick="previousAccordionPanel(event)">{% trans 'Vorheriger Abschnitt' %} {% bootstrap_icon 'arrow-up' %}</a>
+                        </div>
+                    </div>
+                </div>
+            </div>
         </div>
         <div class="panel-footer">
             <button type="submit" class="btn btn-success">
diff --git a/dav_events/views/events.py b/dav_events/views/events.py
index d98d64a..bec3289 100644
--- a/dav_events/views/events.py
+++ b/dav_events/views/events.py
@@ -211,6 +211,18 @@ class EventUpdateView(EventPermissionMixin, generic.UpdateView):
         self.enforce_permission(obj)
         return obj
 
+    def get_form(self, form_class=None):
+        form = super(EventUpdateView, self).get_form(form_class)
+        if not self.has_permission('accept', self.object):
+            form.fields['registration_howto'].disabled = True
+            form.fields['planned_publication_date'].disabled = True
+            form.fields['planned_publication_date'].widget = forms.generic.forms.HiddenInput()
+            form.fields['number'].disabled = True
+            form.fields['number'].widget = forms.generic.forms.HiddenInput()
+            form.fields['owner'].disabled = True
+            form.fields['owner'].widget = forms.generic.forms.HiddenInput()
+        return form
+
     def get_context_data(self, **kwargs):
         context = super(EventUpdateView, self).get_context_data(**kwargs)
         obj = context.get('event')
@@ -221,6 +233,12 @@ class EventUpdateView(EventPermissionMixin, generic.UpdateView):
         context['is_publishing'] = obj.workflow.has_reached_status('publishing')
         context['is_publishing_any'] = obj.workflow.has_reached_status('publishing*')
         context['is_accepted'] = obj.workflow.has_reached_status('accepted')
+
+        if 'form' in kwargs and kwargs['form'].errors:
+            context['decollapseAllForms'] = True
+        else:
+            context['decollapseFirstForm'] = True
+
         return context
 
     def form_valid(self, form):