diff --git a/documentation/changelog.rst b/documentation/changelog.rst
index 72380bb04..d5a24a9a5 100644
--- a/documentation/changelog.rst
+++ b/documentation/changelog.rst
@@ -6,6 +6,10 @@ FlexMeasures Changelog
 v0.5.0 | May XX, 2021
 ===========================
 
+New features
+-----------
+* Allow plugins to overwrite UI routes and customise the teaser on the login form [see `PR #106 <http://www.github.com/SeitaBV/flexmeasures/pull/106>`_]
+
 Infrastructure / Support
 ----------------------
 * Make assets use MW as their default unit and enforce that in CLI, as well (API already did) [see `PR #108 <http://www.github.com/SeitaBV/flexmeasures/pull/108>`_]
diff --git a/documentation/dev/plugins.rst b/documentation/dev/plugins.rst
index 8fbf02385..ba65e2a9c 100644
--- a/documentation/dev/plugins.rst
+++ b/documentation/dev/plugins.rst
@@ -49,6 +49,7 @@ All else that is needed for this showcase (not shown here) is ``<some_folder>/ou
 
     # Showcase: Adding a view
 
+    @our_client_bp.route('/')
     @our_client_bp.route('/metrics')
     @login_required
     def metrics():
@@ -75,6 +76,7 @@ All else that is needed for this showcase (not shown here) is ``<some_folder>/ou
         print(f"I am a CLI command, part of FlexMeasures: {current_app}")
 
 
+.. note:: You can overwrite FlexMeasures routes here. In our example above, we set the root route ``/``. FlexMeasures registers plugin routes before its own, so in this case visiting the root URL of your app will display this plugged-in view (the same you'd see at `/metrics`).
 
 .. note:: Plugin views can also be added to the FlexMeasures UI menu ― just name them in the config setting :ref:`menu-config`.
 
@@ -93,4 +95,28 @@ This can be done if you put the plugin path on the import path. Do it like this
     HERE = os.path.dirname(os.path.abspath(__file__))
     sys.path.insert(0, HERE)
 
-    from my_other_file import my_function
\ No newline at end of file
+    from my_other_file import my_function
+
+
+Customising the login teaser
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+FlexMeasures shows an image carousel next to its login form (see ``ui/templates/admin/login_user.html``).
+
+You can overwrite this content by adding your own login template and defining the ``teaser`` block yourself, e.g.:
+
+.. code-block:: html
+
+    {% extends "admin/login_user.html" %}
+
+    {% block teaser %}
+
+        <h1>Welcome to my plugin!</h1>
+
+    {% endblock %}
+
+Place this template file in the template folder of your plugin blueprint (see above). Your template must have a different filename than "login_user", so FlexMeasures will find it properly!
+
+Finally, add this config setting to your FlexMeasures config file (using the template filename you chose, obviously):
+
+    SECURITY_LOGIN_USER_TEMPLATE = "my_user_login.html"
diff --git a/flexmeasures/api/common/utils/api_utils.py b/flexmeasures/api/common/utils/api_utils.py
index dbbcca910..ac729707d 100644
--- a/flexmeasures/api/common/utils/api_utils.py
+++ b/flexmeasures/api/common/utils/api_utils.py
@@ -360,7 +360,7 @@ def get_generic_asset(
 def save_to_db(
     timed_values: List[Union[Power, Price, Weather]], forecasting_jobs: List[Job]
 ) -> ResponseTuple:
-    """Put the timed values into the database and create forecasting jobs.
+    """Put the timed values into the database and enqueue forecasting jobs.
 
     Data can only be replaced on servers in play mode.
 
diff --git a/flexmeasures/app.py b/flexmeasures/app.py
index c2ef442f2..9918b6d9e 100644
--- a/flexmeasures/app.py
+++ b/flexmeasures/app.py
@@ -98,17 +98,22 @@ def create(env: Optional[str] = None, path_to_config: Optional[str] = None) -> F
 
     register_api_at(app)
 
+    # Register plugins
+
+    from flexmeasures.utils.app_utils import register_plugins
+
+    register_plugins(app)
+
     # Register the UI
+    # If plugins registered routes already (e.g. "/"),
+    # they have precedence (first registration wins).
 
     from flexmeasures.ui import register_at as register_ui_at
 
     register_ui_at(app)
 
-    from flexmeasures.utils.app_utils import register_plugins
-
-    register_plugins(app)
-
     # Profile endpoints (if needed, e.g. during development)
+
     @app.before_request
     def before_request():
         if app.config.get("FLEXMEASURES_PROFILE_REQUESTS", False):
diff --git a/flexmeasures/ui/templates/admin/login_user.html b/flexmeasures/ui/templates/admin/login_user.html
index a8e2a74d1..557fc9028 100644
--- a/flexmeasures/ui/templates/admin/login_user.html
+++ b/flexmeasures/ui/templates/admin/login_user.html
@@ -40,6 +40,7 @@ <h2>Interested in a demo?</h2>
             {% endif %}
         </div>
         <div class="col-sm-8">
+            {% block teaser %}
             <h1>The FlexMeasures Platform</h1>
             <div class="carousel-container">
                 <div id="myCarousel" class="carousel slide" data-ride="carousel">
@@ -86,6 +87,7 @@ <h1>The FlexMeasures Platform</h1>
                     </a>
                 </div>
             </div>
+            {% endblock teaser %}
         </div>
     </div>
 </div>