diff --git a/openslides/agenda/static/js/agenda/base.js b/openslides/agenda/static/js/agenda/base.js
index e4be45c88..b63d0f5ff 100644
--- a/openslides/agenda/static/js/agenda/base.js
+++ b/openslides/agenda/static/js/agenda/base.js
@@ -295,8 +295,9 @@ angular.module('OpenSlidesApp.agenda', ['OpenSlidesApp.users'])
     'Assignment', // TODO: Remove this after refactoring of data loading on start.
     'Topic', // TODO: Remove this after refactoring of data loading on start.
     'Motion', // TODO: Remove this after refactoring of data loading on start.
+    'MotionBlock', // TODO: Remove this after refactoring of data loading on start.
     'Agenda',
-    function (Projector, Assignment, Topic, Motion, Agenda) {
+    function (Projector, Assignment, Topic, Motion, MotionBlock, Agenda) {
         return {
             getItem: function (projectorId) {
                 var elementPromise;
@@ -311,6 +312,13 @@ angular.module('OpenSlidesApp.agenda', ['OpenSlidesApp.users'])
                                     });
                                 });
                                 break;
+                            case 'motions/motion-block':
+                                elementPromise = MotionBlock.find(element.id).then(function(motionBlock) {
+                                    return MotionBlock.loadRelations(motionBlock, 'agenda_item').then(function() {
+                                        return motionBlock.agenda_item;
+                                    });
+                                });
+                                break;
                             case 'topics/topic':
                                 elementPromise = Topic.find(element.id).then(function(topic) {
                                     return Topic.loadRelations(topic, 'agenda_item').then(function() {
diff --git a/openslides/core/signals.py b/openslides/core/signals.py
index f2667ca21..bb08c9918 100644
--- a/openslides/core/signals.py
+++ b/openslides/core/signals.py
@@ -64,6 +64,10 @@ def create_builtin_projection_defaults(**kwargs):
         name='motions',
         display_name='Motions',
         projector=default_projector)
+    ProjectionDefault.objects.create(
+        name='motionBlocks',
+        display_name='Motion Blocks',
+        projector=default_projector)
     ProjectionDefault.objects.create(
         name='assignments',
         display_name='Elections',
diff --git a/openslides/motions/access_permissions.py b/openslides/motions/access_permissions.py
index 2ac7b4a2a..4f46c8b89 100644
--- a/openslides/motions/access_permissions.py
+++ b/openslides/motions/access_permissions.py
@@ -93,6 +93,25 @@ class CategoryAccessPermissions(BaseAccessPermissions):
         return CategorySerializer
 
 
+class MotionBlockAccessPermissions(BaseAccessPermissions):
+    """
+    Access permissions container for Category and CategoryViewSet.
+    """
+    def check_permissions(self, user):
+        """
+        Returns True if the user has read access model instances.
+        """
+        return user.has_perm('motions.can_see')
+
+    def get_serializer_class(self, user=None):
+        """
+        Returns serializer class.
+        """
+        from .serializers import MotionBlockSerializer
+
+        return MotionBlockSerializer
+
+
 class WorkflowAccessPermissions(BaseAccessPermissions):
     """
     Access permissions container for Workflow and WorkflowViewSet.
diff --git a/openslides/motions/apps.py b/openslides/motions/apps.py
index 413e12024..e82732e31 100644
--- a/openslides/motions/apps.py
+++ b/openslides/motions/apps.py
@@ -18,7 +18,7 @@ class MotionsAppConfig(AppConfig):
         from openslides.utils.rest_api import router
         from .config_variables import get_config_variables
         from .signals import create_builtin_workflows
-        from .views import CategoryViewSet, MotionViewSet, MotionPollViewSet, MotionChangeRecommendationViewSet, WorkflowViewSet
+        from .views import CategoryViewSet, MotionViewSet, MotionBlockViewSet, MotionPollViewSet, MotionChangeRecommendationViewSet, WorkflowViewSet
 
         # Define config variables
         config.update_config_variables(get_config_variables())
@@ -29,6 +29,7 @@ class MotionsAppConfig(AppConfig):
         # Register viewsets.
         router.register(self.get_model('Category').get_collection_string(), CategoryViewSet)
         router.register(self.get_model('Motion').get_collection_string(), MotionViewSet)
+        router.register(self.get_model('MotionBlock').get_collection_string(), MotionBlockViewSet)
         router.register(self.get_model('Workflow').get_collection_string(), WorkflowViewSet)
         router.register(self.get_model('MotionChangeRecommendation').get_collection_string(),
                         MotionChangeRecommendationViewSet)
diff --git a/openslides/motions/migrations/0005_auto_20161004_2350.py b/openslides/motions/migrations/0005_auto_20161004_2350.py
new file mode 100644
index 000000000..6244fa0ab
--- /dev/null
+++ b/openslides/motions/migrations/0005_auto_20161004_2350.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.1 on 2016-10-04 21:50
+from __future__ import unicode_literals
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+import openslides.utils.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('motions', '0004_auto_20160907_2343'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='MotionBlock',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=255)),
+            ],
+            options={
+                'default_permissions': (),
+            },
+            bases=(openslides.utils.models.RESTModelMixin, models.Model),
+        ),
+        migrations.AddField(
+            model_name='motion',
+            name='motion_block',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='motions.MotionBlock'),
+        ),
+    ]
diff --git a/openslides/motions/models.py b/openslides/motions/models.py
index f415fc01b..421786e31 100644
--- a/openslides/motions/models.py
+++ b/openslides/motions/models.py
@@ -23,6 +23,7 @@ from openslides.utils.search import user_name_helper
 from .access_permissions import (
     CategoryAccessPermissions,
     MotionAccessPermissions,
+    MotionBlockAccessPermissions,
     MotionChangeRecommendationAccessPermissions,
     WorkflowAccessPermissions,
 )
@@ -116,6 +117,15 @@ class Motion(RESTModelMixin, models.Model):
     ForeignKey to one category of motions.
     """
 
+    motion_block = models.ForeignKey(
+        'MotionBlock',
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True)
+    """
+    ForeignKey to one block of motions.
+    """
+
     origin = models.CharField(max_length=255, blank=True)
     """
     A string to describe the origin of this motion e. g. that it was
@@ -783,6 +793,66 @@ class Category(RESTModelMixin, models.Model):
         return self.name
 
 
+class MotionBlockManager(models.Manager):
+    """
+    Customized model manager to support our get_full_queryset method.
+    """
+    def get_full_queryset(self):
+        """
+        Returns the normal queryset with all motion blocks. In the
+        background the related agenda item is prefetched from the database.
+        """
+        return self.get_queryset().prefetch_related('agenda_items')
+
+
+class MotionBlock(RESTModelMixin, models.Model):
+    """
+    Model for blocks of motions.
+    """
+    access_permissions = MotionBlockAccessPermissions()
+
+    objects = MotionBlockManager()
+
+    title = models.CharField(max_length=255)
+
+    # In theory there could be one then more agenda_item. But we support only
+    # one. See the property agenda_item.
+    agenda_items = GenericRelation(Item, related_name='topics')
+
+    class Meta:
+        default_permissions = ()
+
+    def __str__(self):
+        return self.title
+
+    @property
+    def agenda_item(self):
+        """
+        Returns the related agenda item.
+        """
+        # We support only one agenda item so just return the first element of
+        # the queryset.
+        return self.agenda_items.all()[0]
+
+    @property
+    def agenda_item_id(self):
+        """
+        Returns the id of the agenda item object related to this object.
+        """
+        return self.agenda_item.pk
+
+    def get_agenda_title(self):
+        return self.title
+
+    def get_agenda_list_view_title(self):
+        return self.title
+
+    @classmethod
+    def get_collection_string(cls):
+        # TODO: Fix generic method to support camelCase, #2480.
+        return 'motions/motion-block'
+
+
 class MotionLog(RESTModelMixin, models.Model):
     """Save a logmessage for a motion."""
 
diff --git a/openslides/motions/projector.py b/openslides/motions/projector.py
index 862961662..78750b463 100644
--- a/openslides/motions/projector.py
+++ b/openslides/motions/projector.py
@@ -1,7 +1,7 @@
 from ..core.exceptions import ProjectorException
 from ..utils.collection import CollectionElement
 from ..utils.projector import ProjectorElement
-from .models import Motion
+from .models import Motion, MotionBlock
 
 
 class MotionSlide(ProjectorElement):
@@ -48,3 +48,44 @@ class MotionSlide(ProjectorElement):
         else:
             data = {'agenda_item_id': motion.agenda_item_id}
         return data
+
+
+class MotionBlockSlide(ProjectorElement):
+    """
+    Slide definitions for a block of motions (MotionBlock model).
+    """
+    name = 'motions/motion-block'
+
+    def check_data(self):
+        if not MotionBlock.objects.filter(pk=self.config_entry.get('id')).exists():
+            raise ProjectorException('MotionBlock does not exist.')
+
+    def get_requirements(self, config_entry):
+        try:
+            motion_block = MotionBlock.objects.get(pk=config_entry.get('id'))
+        except MotionBlock.DoesNotExist:
+            # MotionBlock does not exist. Just do nothing.
+            pass
+        else:
+            yield motion_block
+            yield motion_block.agenda_item
+            yield from motion_block.motion_set.all()
+
+    def get_collection_elements_required_for_this(self, collection_element, config_entry):
+        output = super().get_collection_elements_required_for_this(collection_element, config_entry)
+        # Full update if a motion changes because then it may be appended to
+        # or removed from the block.
+        if collection_element.collection_string == Motion.get_collection_string():
+            output.extend(self.get_requirements_as_collection_elements(config_entry))
+        return output
+
+    def update_data(self):
+        data = None
+        try:
+            motion_block = MotionBlock.objects.get(pk=self.config_entry.get('id'))
+        except MotionBlock.DoesNotExist:
+            # MotionBlock does not exist, so just do nothing.
+            pass
+        else:
+            data = {'agenda_item_id': motion_block.agenda_item_id}
+        return data
diff --git a/openslides/motions/serializers.py b/openslides/motions/serializers.py
index c094e3b3c..8a8373fce 100644
--- a/openslides/motions/serializers.py
+++ b/openslides/motions/serializers.py
@@ -16,6 +16,7 @@ from openslides.utils.rest_api import (
 from .models import (
     Category,
     Motion,
+    MotionBlock,
     MotionChangeRecommendation,
     MotionLog,
     MotionPoll,
@@ -42,6 +43,15 @@ class CategorySerializer(ModelSerializer):
         fields = ('id', 'name', 'prefix',)
 
 
+class MotionBlockSerializer(ModelSerializer):
+    """
+    Serializer for motion.models.Category objects.
+    """
+    class Meta:
+        model = MotionBlock
+        fields = ('id', 'title', 'agenda_item_id',)
+
+
 class StateSerializer(ModelSerializer):
     """
     Serializer for motion.models.State objects.
@@ -275,6 +285,7 @@ class MotionSerializer(ModelSerializer):
             'active_version',
             'parent',
             'category',
+            'motion_block',
             'origin',
             'submitters',
             'supporters',
@@ -300,6 +311,7 @@ class MotionSerializer(ModelSerializer):
         motion.reason = validated_data.get('reason', '')
         motion.identifier = validated_data.get('identifier')
         motion.category = validated_data.get('category')
+        motion.motion_block = validated_data.get('motion_block')
         motion.origin = validated_data.get('origin', '')
         motion.comments = validated_data.get('comments')
         motion.parent = validated_data.get('parent')
@@ -319,8 +331,8 @@ class MotionSerializer(ModelSerializer):
         """
         Customized method to update a motion.
         """
-        # Identifier, category, origin and comments.
-        for key in ('identifier', 'category', 'origin', 'comments'):
+        # Identifier, category, motion_block, origin and comments.
+        for key in ('identifier', 'category', 'motion_block', 'origin', 'comments'):
             if key in validated_data.keys():
                 setattr(motion, key, validated_data[key])
 
diff --git a/openslides/motions/static/js/motions/base.js b/openslides/motions/static/js/motions/base.js
index 55a3df574..3e2cdbe2f 100644
--- a/openslides/motions/static/js/motions/base.js
+++ b/openslides/motions/static/js/motions/base.js
@@ -3,10 +3,11 @@
 "use strict";
 
 angular.module('OpenSlidesApp.motions', [
-  'OpenSlidesApp.users',
-  'OpenSlidesApp.motions.lineNumbering',
-  'OpenSlidesApp.motions.diff',
-  'OpenSlidesApp.motions.DOCX'
+    'OpenSlidesApp.motions.motionBlock',
+    'OpenSlidesApp.motions.lineNumbering',
+    'OpenSlidesApp.motions.diff',
+    'OpenSlidesApp.motions.DOCX',
+    'OpenSlidesApp.users',
 ])
 
 .factory('WorkflowState', [
@@ -115,7 +116,7 @@ angular.module('OpenSlidesApp.motions', [
                             if (type == 'yes' || type == 'no') {
                                 base = this.yes + this.no;
                             }
-                        } else if (config == "VALID" && type !== 'votescast' && type !== 'votesinvalid' && 
+                        } else if (config == "VALID" && type !== 'votescast' && type !== 'votesinvalid' &&
                             this.votesvalid > 0) {
                             base = this.votesvalid;
                         } else if (config == "CAST" && this.votescast > 0) {
@@ -389,6 +390,10 @@ angular.module('OpenSlidesApp.motions', [
                         localField: 'category',
                         localKey: 'category_id',
                     },
+                    'motions/motion-block': {
+                        localField: 'motionBlock',
+                        localKey: 'motion_block_id',
+                    },
                     'agenda/item': {
                         localKey: 'agenda_item_id',
                         localField: 'agenda_item',
diff --git a/openslides/motions/static/js/motions/motion-block-projector.js b/openslides/motions/static/js/motions/motion-block-projector.js
new file mode 100644
index 000000000..e1e791b0c
--- /dev/null
+++ b/openslides/motions/static/js/motions/motion-block-projector.js
@@ -0,0 +1,32 @@
+(function () {
+
+'use strict';
+
+angular.module('OpenSlidesApp.motions.motionBlockProjector', [])
+
+
+// MotionBlock projector elements
+
+.config([
+    'slidesProvider',
+    function(slidesProvider) {
+        slidesProvider.registerSlide('motions/motion-block', {
+            template: 'static/templates/motions/slide_motion_block.html',
+        });
+    }
+])
+
+.controller('SlideMotionBlockCtrl', [
+    '$scope',
+    'Motion',
+    'MotionBlock',
+    function($scope, Motion, MotionBlock) {
+        // Attention! Each object that is used here has to be dealt on server side.
+        // Add it to the coresponding get_requirements method of the ProjectorElement
+        // class.
+        var id = $scope.element.id;
+        MotionBlock.bindOne(id, $scope, 'motionBlock');
+    }
+]);
+
+}());
diff --git a/openslides/motions/static/js/motions/motion-block.js b/openslides/motions/static/js/motions/motion-block.js
new file mode 100644
index 000000000..9a88b0b23
--- /dev/null
+++ b/openslides/motions/static/js/motions/motion-block.js
@@ -0,0 +1,244 @@
+(function () {
+
+'use strict';
+
+angular.module('OpenSlidesApp.motions.motionBlock', [])
+
+
+// MotionBlock model
+
+.factory('MotionBlock', [
+    'DS',
+    'jsDataModel',
+    'gettext',
+    function(DS, jsDataModel, gettext) {
+        var name = 'motions/motion-block';
+        return DS.defineResource({
+            name: name,
+            useClass: jsDataModel,
+            verboseName: gettext('Motion block'),
+            methods: {
+                getResourceName: function () {
+                    return name;
+                },
+                getAgendaTitle: function () {
+                    return this.title;
+                },
+            },
+            relations: {
+                belongsTo: {
+                    'agenda/item': {
+                        localKey: 'agenda_item_id',
+                        localField: 'agenda_item',
+                    }
+                },
+                hasMany: {
+                    'motions/motion': {
+                        localField: 'motions',
+                        foreignKey: 'motion_block_id',
+                    }
+                },
+            }
+        });
+    }
+])
+
+.run(['MotionBlock', function(MotionBlock) {}])
+
+
+// MotionBlock views (list view, create dialog, update dialog)
+
+.factory('MotionBlockForm', [
+    '$http',
+    'gettextCatalog',
+    'Agenda',
+    'AgendaTree',
+    function ($http, gettextCatalog, Agenda, AgendaTree) {
+        return {
+            // Get ngDialog configuration.
+            getDialog: function (motionBlock) {
+                return {
+                    template: 'static/templates/motions/motionBlock-form.html',
+                    controller: (motionBlock) ? 'MotionBlockUpdateCtrl' : 'MotionBlockCreateCtrl',
+                    className: 'ngdialog-theme-default wide-form',
+                    closeByEscape: false,
+                    closeByDocument: false,
+                    resolve: {
+                        motionBlock: function () {
+                            return motionBlock;
+                        }
+                    }
+                };
+            },
+            // Get angular-formly fields.
+            getFormFields: function () {
+                return [
+                    {
+                        key: 'title',
+                        type: 'input',
+                        templateOptions: {
+                            label: gettextCatalog.getString('Title')
+                        }
+                    },
+                    {
+                        key: 'showAsAgendaItem',
+                        type: 'checkbox',
+                        templateOptions: {
+                            label: gettextCatalog.getString('Show as agenda item'),
+                            description: gettextCatalog.getString('If deactivated it appears as internal item on agenda.')
+                        }
+                    },
+                    {
+                        key: 'agenda_parent_item_id',
+                        type: 'select-single',
+                        templateOptions: {
+                            label: gettextCatalog.getString('Parent item'),
+                            options: AgendaTree.getFlatTree(Agenda.getAll()),
+                            ngOptions: 'item.id as item.getListViewTitle() for item in to.options | notself : model.agenda_item_id',
+                            placeholder: gettextCatalog.getString('Select a parent item ...')
+                        }
+                    }
+                ];
+            }
+        };
+    }
+])
+
+// TODO: Rename this to MotionBlockListCtrl after $stateProvider is fixed, see #2479.
+.controller('MotionblockListCtrl', [
+    '$scope',
+    'ngDialog',
+    'MotionBlock',
+    'MotionBlockForm',
+    function ($scope, ngDialog, MotionBlock, MotionBlockForm) {
+        // Two-way data binding for all MotionBlock instances.
+        MotionBlock.bindAll({}, $scope, 'motionBlocks');
+
+        // Dialog with a form to create or update a MotionBlock instance.
+        $scope.openFormDialog = function (motionBlock) {
+            ngDialog.open(MotionBlockForm.getDialog(motionBlock));
+        };
+
+        // Confirm dialog to delete a MotionBlock instance.
+        $scope.delete = function (motionBlock) {
+            MotionBlock.destroy(motionBlock.id);
+        };
+
+        // TODO: In template we have filter toggleSort reverse sortColumn header. Use this stuff or remove it.
+    }
+])
+
+// TODO: Rename this to MotionBlockDetailCtrl after $stateProvider is fixed, see #2479.
+.controller('MotionblockDetailCtrl', [
+    '$scope',
+    'ngDialog',
+    'MotionBlockForm',
+    'MotionBlock',
+    'motionBlock',
+    'Projector',
+    'ProjectionDefault',
+    function($scope, ngDialog, MotionBlockForm, MotionBlock, motionBlock, Projector, ProjectionDefault) {
+        MotionBlock.bindOne(motionBlock.id, $scope, 'motionBlock');
+        $scope.$watch(function () {
+            return Projector.lastModified();
+        }, function () {
+            var projectiondefault = ProjectionDefault.filter({name: 'motionBlocks'})[0];
+            if (projectiondefault) {
+                $scope.defaultProjectorId = projectiondefault.projector_id;
+            }
+        });
+        $scope.openDialog = function (topic) {
+            ngDialog.open(MotionBlockForm.getDialog(motionBlock));
+        };
+    }
+])
+
+.controller('MotionBlockCreateCtrl', [
+    '$scope',
+    'MotionBlock',
+    'MotionBlockForm',
+    'AgendaUpdate',
+    function($scope, MotionBlock, MotionBlockForm, AgendaUpdate) {
+        // Prepare form.
+        $scope.model = {};
+        $scope.model.showAsAgendaItem = true;
+
+        // Get all form fields.
+        $scope.formFields = MotionBlockForm.getFormFields();
+
+        // Save form.
+        $scope.save = function (motionBlock) {
+            MotionBlock.create(motionBlock).then(
+                function (success) {
+                    // type: Value 1 means a non hidden agenda item, value 2 means a hidden agenda item,
+                    // see openslides.agenda.models.Item.ITEM_TYPE.
+                    var changes = [{key: 'type', value: (motionBlock.showAsAgendaItem ? 1 : 2)},
+                                   {key: 'parent_id', value: motionBlock.agenda_parent_item_id}];
+                    AgendaUpdate.saveChanges(success.agenda_item_id, changes);
+                    $scope.closeThisDialog();
+                },
+                function (error) {
+                    var message = '';
+                    for (var e in error.data) {
+                        message += e + ': ' + error.data[e] + ' ';
+                    }
+                    $scope.alert = {type: 'danger', msg: message, show: true};
+                }
+            );
+        };
+    }
+])
+
+.controller('MotionBlockUpdateCtrl', [
+    '$scope',
+    '$state',
+    'MotionBlock',
+    'MotionBlockForm',
+    'AgendaUpdate',
+    'motionBlock',
+    function($scope, $state, MotionBlock, MotionBlockForm, AgendaUpdate, motionBlock) {
+        // TODO: Check #2486 and remove some agenda related code.
+        //MotionBlock.loadRelations(motionBlock, 'agenda_item');
+        $scope.alert = {};
+
+        // Prepare form. Set initial values by creating a deep copy of
+        // motionBlock object so list/detail view is not updated while editing.
+        $scope.model = angular.copy(motionBlock);
+
+        // Get all form fields.
+        $scope.formFields = MotionBlockForm.getFormFields();
+        for (var i = 0; i < $scope.formFields.length; i++) {
+            if ($scope.formFields[i].key == 'showAsAgendaItem') {
+                // Get state from agenda item (hidden/internal or agenda item).
+                $scope.formFields[i].defaultValue = !motionBlock.agenda_item.is_hidden;
+            } else if ($scope.formFields[i].key == 'agenda_parent_item_id') {
+                $scope.formFields[i].defaultValue = motionBlock.agenda_item.parent_id;
+            }
+        }
+        // Save form.
+        $scope.save = function (motionBlock) {
+            MotionBlock.create(motionBlock).then(
+                function (success) {
+                    // type: Value 1 means a non hidden agenda item, value 2 means a hidden agenda item,
+                    // see openslides.agenda.models.Item.ITEM_TYPE.
+                    var changes = [{key: 'type', value: (motionBlock.showAsAgendaItem ? 1 : 2)},
+                                   {key: 'parent_id', value: motionBlock.agenda_parent_item_id}];
+                    AgendaUpdate.saveChanges(success.agenda_item_id,changes);
+                    $scope.closeThisDialog();
+                },
+                function (error) {
+                    // Save error: revert all changes by restore
+                    // (refresh) original motionBlock object from server
+                    MotionBlock.refresh(motionBlock);  // TODO: Why do we need a refresh here?
+                    var message = '';
+                    for (var e in error.data) {
+                        message += e + ': ' + error.data[e] + ' ';
+                    }
+                    $scope.alert = {type: 'danger', msg: message, show: true};
+                }
+            );
+        };
+    }
+]);
+
+}());
diff --git a/openslides/motions/static/js/motions/projector.js b/openslides/motions/static/js/motions/projector.js
index fa315b458..b5054dc8e 100644
--- a/openslides/motions/static/js/motions/projector.js
+++ b/openslides/motions/static/js/motions/projector.js
@@ -2,7 +2,10 @@
 
 'use strict';
 
-angular.module('OpenSlidesApp.motions.projector', ['OpenSlidesApp.motions'])
+angular.module('OpenSlidesApp.motions.projector', [
+    'OpenSlidesApp.motions',
+    'OpenSlidesApp.motions.motionBlockProjector',
+])
 
 .config([
     'slidesProvider',
diff --git a/openslides/motions/static/js/motions/site.js b/openslides/motions/static/js/motions/site.js
index 44aacb6a8..9626161e0 100644
--- a/openslides/motions/static/js/motions/site.js
+++ b/openslides/motions/static/js/motions/site.js
@@ -4,7 +4,6 @@
 
 angular.module('OpenSlidesApp.motions.site', [
     'OpenSlidesApp.motions',
-    'OpenSlidesApp.motions.diff',
     'OpenSlidesApp.motions.motionservices',
     'OpenSlidesApp.poll.majority',
     'OpenSlidesApp.core.pdf',
@@ -50,6 +49,9 @@ angular.module('OpenSlidesApp.motions.site', [
                     categories: function(Category) {
                         return Category.findAll();
                     },
+                    motionBlocks: function(MotionBlock) {
+                        return MotionBlock.findAll();
+                    },
                     tags: function(Tag) {
                         return Tag.findAll();
                     },
@@ -81,6 +83,9 @@ angular.module('OpenSlidesApp.motions.site', [
                     categories: function(Category) {
                         return Category.findAll();
                     },
+                    motionBlocks: function(MotionBlock) {
+                        return MotionBlock.findAll();
+                    },
                     users: function(User) {
                         return User.findAll().catch(
                             function () {
@@ -198,6 +203,66 @@ angular.module('OpenSlidesApp.motions.site', [
                 },
                 controller: 'CategorySortCtrl',
                 templateUrl: 'static/templates/motions/category-sort.html'
+            })
+            // MotionBlock
+            .state('motions.motionBlock', {
+                url: '/blocks',
+                abstract: true,
+                template: '<ui-view/>',
+            })
+            .state('motions.motionBlock.list', {
+               resolve: {
+                    motionBlocks: function (MotionBlock) {
+                        return MotionBlock.findAll();
+                    },
+                    items: function(Agenda) {
+                        return Agenda.findAll().catch(
+                            function () {
+                                return null;
+                            }
+                        );
+                    }
+                }
+            })
+            .state('motions.motionBlock.detail', {
+                resolve: {
+                    motionBlock: function(MotionBlock, $stateParams) {
+                        return MotionBlock.find($stateParams.id);
+                    },
+                    items: function(Agenda) {
+                        return Agenda.findAll().catch(
+                            function () {
+                                return null;
+                            }
+                        );
+                    }
+                }
+            })
+            // redirects to motionBlock detail and opens motionBlock edit form dialog, uses edit url,
+            // used by ui-sref links from agenda only
+            // (from motionBlock controller use MotionBlockForm factory instead to open dialog in front
+            // of current view without redirect)
+            .state('motions.motionBlock.detail.update', {
+                onEnter: ['$stateParams', '$state', 'ngDialog', 'MotionBlock',
+                    function($stateParams, $state, ngDialog, MotionBlock) {
+                        ngDialog.open({
+                            template: 'static/templates/motions/motionBlock-form.html',
+                            controller: 'MotionBlockUpdateCtrl',
+                            className: 'ngdialog-theme-default wide-form',
+                            closeByEscape: false,
+                            closeByDocument: false,
+                            resolve: {
+                                motionBlock: function () {
+                                    return motionBlock;
+                                }
+                            },
+                            preCloseCallback: function() {
+                                $state.go('motions.motionBlock.detail', {motionBlock: $stateParams.id});
+                                return true;
+                            }
+                        });
+                    }
+                ],
             });
     }
 ])
@@ -306,12 +371,13 @@ angular.module('OpenSlidesApp.motions.site', [
     'Category',
     'Config',
     'Mediafile',
+    'MotionBlock',
     'Tag',
     'User',
     'Workflow',
     'Agenda',
     'AgendaTree',
-    function (gettextCatalog, operator, Editor, MotionComment, Category, Config, Mediafile, Tag, User, Workflow, Agenda, AgendaTree) {
+    function (gettextCatalog, operator, Editor, MotionComment, Category, Config, Mediafile, MotionBlock, Tag, User, Workflow, Agenda, AgendaTree) {
         return {
             // ngDialog for motion form
             getDialog: function (motion) {
@@ -453,6 +519,17 @@ angular.module('OpenSlidesApp.motions.site', [
                     },
                     hideExpression: '!model.more'
                 },
+                {
+                    key: 'motion_block_id',
+                    type: 'select-single',
+                    templateOptions: {
+                        label: gettextCatalog.getString('Motion block'),
+                        options: MotionBlock.getAll(),
+                        ngOptions: 'option.id as option.title for option in to.options',
+                        placeholder: gettextCatalog.getString('Select or search a motion block ...')
+                    },
+                    hideExpression: '!model.more'
+                },
                 {
                     key: 'origin',
                     type: 'input',
diff --git a/openslides/motions/static/templates/motions/motion-detail.html b/openslides/motions/static/templates/motions/motion-detail.html
index e622df746..bf2e41f68 100644
--- a/openslides/motions/static/templates/motions/motion-detail.html
+++ b/openslides/motions/static/templates/motions/motion-detail.html
@@ -159,6 +159,11 @@
           <!-- Origin -->
           <h3 ng-if="motion.origin" translate>Origin</h3>
           {{ motion.origin }}
+
+          <!-- Motion block -->
+          <h3 translate>Motion block</h3>
+          {{ motion.motionBlock }}
+
       </div>
       <div class="col-md-4">
           <h3 ng-if="motion.polls.length > 0" translate>Voting result</h3>
diff --git a/openslides/motions/static/templates/motions/motion-list.html b/openslides/motions/static/templates/motions/motion-list.html
index ed4e64e12..1265e05f1 100644
--- a/openslides/motions/static/templates/motions/motion-list.html
+++ b/openslides/motions/static/templates/motions/motion-list.html
@@ -9,6 +9,10 @@
         <i class="fa fa-sitemap fa-lg"></i>
         <translate>Categories</translate>
       </a>
+      <a ui-sref="motions.motionBlock.list" os-perms="motions.can_manage" class="btn btn-default btn-sm">
+        <i class="fa fa-list fa-lg"></i>
+        <translate>Motion blocks</translate>
+      </a>
       <a ui-sref="core.tag.list" os-perms="core.can_manage_tags" class="btn btn-default btn-sm">
         <i class="fa fa-tags fa-lg"></i>
         <translate>Tags</translate>
diff --git a/openslides/motions/static/templates/motions/motionBlock-detail.html b/openslides/motions/static/templates/motions/motionBlock-detail.html
new file mode 100644
index 000000000..319be6e89
--- /dev/null
+++ b/openslides/motions/static/templates/motions/motionBlock-detail.html
@@ -0,0 +1,30 @@
+<div class="header">
+  <div class="title">
+    <div class="submenu">
+      <a ui-sref="motions.motionBlock.list" class="btn btn-sm btn-default">
+        <i class="fa fa-angle-double-left fa-lg"></i>
+        <translate>Back to overview</translate>
+      </a>
+      <!-- List of speakers -->
+      <a ui-sref="agenda.item.detail({id: motionBlock.agenda_item_id})" class="btn btn-sm btn-default">
+        <i class="fa fa-microphone fa-lg"></i>
+        <translate>List of speakers</translate>
+      </a>
+      <!-- project -->
+      <projector-button model="motionBlock" default-projector-id="defaultProjectorId">
+      </projector-button>
+      <!-- edit -->
+      <a ng-click="openDialog(motionBlock)"
+          class="btn btn-default btn-sm"
+          title="{{ 'Edit' | translate}}">
+        <i class="fa fa-pencil"></i>
+      </a>
+    </div>
+    <h1>{{ motionBlock.agenda_item.getTitle() }}</h1>
+    <h2 translate>Motion Block</h2>
+  </div>
+</div>
+
+<div class="details">
+  {{ motionBlock.motions }}
+</div>
diff --git a/openslides/motions/static/templates/motions/motionBlock-form.html b/openslides/motions/static/templates/motions/motionBlock-form.html
new file mode 100644
index 000000000..e28d0df3c
--- /dev/null
+++ b/openslides/motions/static/templates/motions/motionBlock-form.html
@@ -0,0 +1,17 @@
+<h1 ng-if="model.id" translate>Edit motion block</h1>
+<h1 ng-if="!model.id" translate>New motion block</h1>
+
+<div uib-alert ng-show="alert.show" ng-class="'alert-' + (alert.type || 'warning')" ng-click="alert={}" close="alert={}">
+  {{ alert.msg }}
+</div>
+
+<form name="motionBlockForm" ng-submit="save(model)">
+  <formly-form model="model" fields="formFields">
+    <button type="submit" ng-disabled="motionBlockForm.$invalid" class="btn btn-primary" translate>
+      Save
+    </button>
+    <button ng-click="closeThisDialog()" class="btn btn-default" translate>
+      Cancel
+    </button>
+  </formly-form>
+</form>
diff --git a/openslides/motions/static/templates/motions/motionBlock-list.html b/openslides/motions/static/templates/motions/motionBlock-list.html
new file mode 100644
index 000000000..966485938
--- /dev/null
+++ b/openslides/motions/static/templates/motions/motionBlock-list.html
@@ -0,0 +1,49 @@
+<div class="header">
+  <div class="title">
+    <div class="submenu">
+      <a ng-click="openFormDialog()" os-perms="motions.can_manage" class="btn btn-primary btn-sm">
+        <i class="fa fa-plus fa-lg"></i>
+        <translate>New</translate>
+      </a>
+      <a ui-sref="motions.motion.list" class="btn btn-sm btn-default">
+        <i class="fa fa-angle-double-left fa-lg"></i>
+        <translate>Back to overview</translate>
+      </a>
+    </div>
+    <h1 translate>Motion blocks</h1>
+  </div>
+</div>
+
+<div class="details">
+  <div class="row form-group">
+    <div class="col-sm-4 pull-right">
+      <input type="text" ng-model="filter.search" class="form-control"
+          placeholder="{{ 'Filter' | translate }}">
+    </div>
+  </div>
+
+  <table class="table table-striped table-bordered table-hover">
+    <thead>
+      <tr>
+        <th ng-click="toggleSort('name')" class="sortable">
+          <translate>Name</translate>
+          <i class="pull-right fa" ng-show="sortColumn === 'name' && header.sortable != false"
+              ng-class="reverse ? 'fa-sort-desc' : 'fa-sort-asc'">
+          </i>
+    <tbody>
+      <tr ng-repeat="motionBlock in motionBlocks | filter: filter.search | orderBy: sortColumn:reverse">
+        <td ng-mouseover="motionBlock.hover=true" ng-mouseleave="motionBlock.hover=false">
+          <strong>
+            <a ui-sref="motions.motionBlock.detail({id: motionBlock.id})">{{ motionBlock.title }}</a>
+          </strong>
+          <div class="hoverActions" ng-class="{'hiddenDiv': !motionBlock.hover}">
+            <!-- edit -->
+            <a ng-click="openFormDialog(motionBlock)" translate>Edit</a> |
+            <!-- delete -->
+            <a href="" class="text-danger"
+              ng-bootbox-confirm="{{ 'Are you sure you want to delete this entry?' | translate }}<br>
+                <b>{{ motionBlock.name }}</b>"
+              ng-bootbox-confirm-action="delete(motionBlock)" translate>Delete</a>
+          </div>
+  </table>
+</div>
diff --git a/openslides/motions/static/templates/motions/slide_motion_block.html b/openslides/motions/static/templates/motions/slide_motion_block.html
new file mode 100644
index 000000000..13982cc3e
--- /dev/null
+++ b/openslides/motions/static/templates/motions/slide_motion_block.html
@@ -0,0 +1,4 @@
+<div ng-controller="SlideMotionBlockCtrl" class="content scrollcontent">
+  <h1>{{ motionBlock.agenda_item.getTitle() }}</h1>
+  <div ng-repeat="motion in motionBlock.motions">{{ motion.identifier }}</div>
+</div>
diff --git a/openslides/motions/views.py b/openslides/motions/views.py
index 4af58bd2b..b73835c06 100644
--- a/openslides/motions/views.py
+++ b/openslides/motions/views.py
@@ -24,6 +24,7 @@ from openslides.utils.views import APIView, PDFView, SingleObjectMixin
 from .access_permissions import (
     CategoryAccessPermissions,
     MotionAccessPermissions,
+    MotionBlockAccessPermissions,
     MotionChangeRecommendationAccessPermissions,
     WorkflowAccessPermissions,
 )
@@ -31,6 +32,7 @@ from .exceptions import WorkflowError
 from .models import (
     Category,
     Motion,
+    MotionBlock,
     MotionChangeRecommendation,
     MotionPoll,
     MotionVersion,
@@ -89,6 +91,8 @@ class MotionViewSet(ModelViewSet):
             # Non-staff users are not allowed to send submitter or supporter data.
             self.permission_denied(request)
 
+        # TODO: Should non staff users be allowed to set motions to blocks or send categories, ...? #2506
+
         # Check permission to send comment data.
         if not request.user.has_perm('motions.can_see_and_manage_comments'):
             try:
@@ -373,7 +377,7 @@ class CategoryViewSet(ModelViewSet):
     API endpoint for categories.
 
     There are the following views: metadata, list, retrieve, create,
-    partial_update, update and destroy.
+    partial_update, update, destroy and numbering.
     """
     access_permissions = CategoryAccessPermissions()
     queryset = Category.objects.all()
@@ -445,6 +449,32 @@ class CategoryViewSet(ModelViewSet):
         return response
 
 
+class MotionBlockViewSet(ModelViewSet):
+    """
+    API endpoint for motion blocks.
+
+    There are the following views: metadata, list, retrieve, create,
+    partial_update, update and destroy.
+    """
+    access_permissions = MotionBlockAccessPermissions()
+    queryset = MotionBlock.objects.all()
+
+    def check_view_permissions(self):
+        """
+        Returns True if the user has required permissions.
+        """
+        if self.action in ('list', 'retrieve'):
+            result = self.get_access_permissions().check_permissions(self.request.user)
+        elif self.action == 'metadata':
+            result = self.request.user.has_perm('motions.can_see')
+        elif self.action in ('create', 'partial_update', 'update', 'destroy'):
+            result = (self.request.user.has_perm('motions.can_see') and
+                      self.request.user.has_perm('motions.can_manage'))
+        else:
+            result = False
+        return result
+
+
 class WorkflowViewSet(ModelViewSet):
     """
     API endpoint for workflows.