diff --git a/atdb/taskdatabase/migrations/0012_task_environment.py b/atdb/taskdatabase/migrations/0012_task_environment.py
new file mode 100644
index 0000000000000000000000000000000000000000..42d59cec3db44f0c9e7f4623e55c38d025346503
--- /dev/null
+++ b/atdb/taskdatabase/migrations/0012_task_environment.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.1.4 on 2022-02-01 13:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('taskdatabase', '0011_auto_20220131_1103'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='task',
+            name='environment',
+            field=models.JSONField(blank=True, null=True),
+        ),
+    ]
diff --git a/atdb/taskdatabase/services/algorithms.py b/atdb/taskdatabase/services/algorithms.py
index 45d14adcbe7843e43c99b03272326dd9da344689..3db3fa8364398018e841ed568b357db120eceac3 100644
--- a/atdb/taskdatabase/services/algorithms.py
+++ b/atdb/taskdatabase/services/algorithms.py
@@ -274,13 +274,13 @@ def convert_monitor_to_html(request, monitor_data):
 
 
 # aggregate information from the tasks table per workflow per status
-def aggregate_resources_tasks(selection):
+def aggregate_resources_tasks(request, selection, filtered_tasks):
     workflow_results = []
     my_workflows = []
 
     # get all active tasks
     if 'active' in selection:
-        active_tasks = Task.objects.filter(status__in=settings.ACTIVE_STATUSSES).filter(task_type='regular')
+        active_tasks = filtered_tasks.filter(status__in=settings.ACTIVE_STATUSSES).filter(task_type='regular')
 
         # retrieve all unique workflows from the active tasks
         active_workflows = active_tasks.values('workflow').distinct()
@@ -303,7 +303,7 @@ def aggregate_resources_tasks(selection):
         # get the numbers for this workflow
 
         # all tasks for this workflow for the 'grand total'
-        tasks_per_workflow = Task.objects.filter(workflow=workflow).filter(task_type='regular')
+        tasks_per_workflow = filtered_tasks.filter(workflow=workflow).filter(task_type='regular')
         nr_of_tasks_per_workflow = tasks_per_workflow.count()
 
         sum_size_to_process = tasks_per_workflow.aggregate(Sum('size_to_process'))
@@ -471,24 +471,20 @@ def highlight_value(values, value_to_highlight):
 
 
 def construct_tasks_per_workflow_html(request, workflow_results):
+
     # --- Progress of tasks per active workflow ---
     results_tasks = "<p>Progress of tasks per workflow</p>"
 
     # construct the header
-    ###header = ""
     header = '<th class="aggregate_failed">failed</th><th class="aggregate">active</th><th class="aggregate">total</th>'
     for status in settings.ALL_STATUSSES:
         header += "<th>" + status + "</th>"
 
-    ###header += '<th class="failed">failed</th><th class="active">active</th><th>total</th>'
-
     results_tasks += header
 
     for workflow_result in workflow_results:
 
         link = construct_link_to_workflow_api(request, workflow_result)
-
-        # values = "<tr><td colspan='5'><b>" + link + "</b></td></tr><tr>"
         values = "<tr class='info'><td colspan='6'><b>" + link + "</b></td>"
 
         # add sizes
@@ -615,8 +611,16 @@ def construct_logs_per_workflow_html(request, workflow_results):
 def construct_dashboard_html(request, selection):
     # gather and construct the dashboard based on the requested selection
 
+    filtered_tasks = Task.objects.all()
+    try:
+        if 'applyfilter' in selection:
+            filtered_tasks_as_list = request.session['filtered_tasks_as_list']
+            filtered_tasks = Task.objects.filter(id__in=filtered_tasks_as_list)
+    except:
+        pass
+
     # --- Progress of tasks per active workflow ---
-    workflow_results = aggregate_resources_tasks(selection)
+    workflow_results = aggregate_resources_tasks(request, selection, filtered_tasks)
     results_tasks = construct_tasks_per_workflow_html(request, workflow_results)
 
     # --- logentries ---
diff --git a/atdb/taskdatabase/templates/dashboard/toggles.html b/atdb/taskdatabase/templates/dashboard/toggles.html
index 5b2a785052b6ad96ff09f2271b27732372433d75..07829575d3b096c6714a301d9b1e8fa97629ac29 100644
--- a/atdb/taskdatabase/templates/dashboard/toggles.html
+++ b/atdb/taskdatabase/templates/dashboard/toggles.html
@@ -24,6 +24,17 @@
            {% if 'resources' in selection %} checked {% endif %}
     >&nbsp;
 
+        <input type="checkbox"
+           id = "apply_filter"
+           name="apply_filter"
+           data-on="Latest Filter Applied"
+           data-off="No Filter Applied"
+           data-toggle="toggle"
+           data-onstyle="primary"
+           data-offstyle="secondary"
+           data-style
+           {% if 'applyfilter' in selection %} checked {% endif %}
+    >&nbsp;
 
     <script>
       $(function() {
@@ -58,4 +69,21 @@
         })
       })
     </script>
+
+    <script>
+      $(function() {
+        $('#apply_filter').change(function() {
+
+          let url = location.href
+          if ($(this).prop('checked')) {
+            url = url.replace('nofilter','applyfilter');
+            location.assign(url);
+          } else {
+            url = url.replace('applyfilter','nofilter');
+            location.assign(url);
+          }
+
+        })
+      })
+    </script>
 </table>
\ No newline at end of file
diff --git a/atdb/taskdatabase/templates/query/index.html b/atdb/taskdatabase/templates/query/index.html
index 8bff93a4252480b291915f1dc3add8f05482086d..a37ce6095dfdd596ec649d451389317df4c1c16a 100644
--- a/atdb/taskdatabase/templates/query/index.html
+++ b/atdb/taskdatabase/templates/query/index.html
@@ -15,8 +15,8 @@
         <form action="" method="get" class="form form-inline">
             {% bootstrap_form filter.form layout='inline' %}
             &nbsp;<button type="submit" class="btn-success  btn-sm" title="Filter"><i class="fas fa-filter"></i> Filter</button>
-
-        </form>
+            {% include "taskdatabase/filter/clear_filter_button.html" %}
+         </form>
     </div>
     {% endif %}
 
diff --git a/atdb/taskdatabase/templates/taskdatabase/base.html b/atdb/taskdatabase/templates/taskdatabase/base.html
index 1ca7e6141cdf3d1ff27a875b5898b3927b8cb39b..2e7799d65a1d4aa182147a006f744286e942ff9f 100644
--- a/atdb/taskdatabase/templates/taskdatabase/base.html
+++ b/atdb/taskdatabase/templates/taskdatabase/base.html
@@ -52,7 +52,7 @@
                     <li><a class="nav-link" href="{% url 'quality' %}">Quality</a></li>
                 {% endif %}
 
-                <li><a class="nav-link" href="{% url 'dashboard' 'active_nores' %}">Dashboard</a></li>
+                <li><a class="nav-link" href="{% url 'dashboard' 'active_nores_nofilter' %}">Dashboard</a></li>
 
                 <li><a class="nav-link" href="{% url 'query' %}">Filter</a></li>
 
diff --git a/atdb/taskdatabase/templates/taskdatabase/filter/clear_filter_button.html b/atdb/taskdatabase/templates/taskdatabase/filter/clear_filter_button.html
new file mode 100644
index 0000000000000000000000000000000000000000..3f103a32e3666bab3fa9eeb6ea0cf909298051f3
--- /dev/null
+++ b/atdb/taskdatabase/templates/taskdatabase/filter/clear_filter_button.html
@@ -0,0 +1 @@
+<a href="{% url 'clear-filter' %}" class="btn btn-warning btn-sm" role="button"><i class="fas fa-window-close"></i> Clear Filter</a>
diff --git a/atdb/taskdatabase/templates/taskdatabase/filter/filter_buttons.html b/atdb/taskdatabase/templates/taskdatabase/filter/filter_buttons.html
index 8bb3b20fec911c4d3632415907a693139240d84e..cd5dcca5b893cf809a32256abc77da0d8e395298 100644
--- a/atdb/taskdatabase/templates/taskdatabase/filter/filter_buttons.html
+++ b/atdb/taskdatabase/templates/taskdatabase/filter/filter_buttons.html
@@ -6,7 +6,7 @@
              <tr><td>Click to Filter</td></tr>
              <tr>
                <td>
-                <a href="{% url 'task-set-filter' 'all' %}" class="btn btn-success btn-sm" role="button"><i class="fas fa-layer-group"></i> All</a>
+                   {% include "taskdatabase/filter/clear_filter_button.html" %}
                 <a href="{% url 'task-set-active-filter' %}" class="btn btn-success btn-sm" role="button"><i class="fas fa-layer-group"></i> Active</a>
                 <a href="{% url 'task-set-filter' 'failed' %}" class="btn btn-danger btn-sm" role="button"><i class="fas fa-layer-group"></i> Failed</a>
                  <a href="{% url 'task-set-onhold-filter' True %}" class="btn btn-warning btn-sm" role="button"><i class="fas fa-layer-group"></i> On Hold</a>
diff --git a/atdb/taskdatabase/templates/taskdatabase/filter/filter.html b/atdb/taskdatabase/templates/taskdatabase/filter/filter_xxx.html
similarity index 100%
rename from atdb/taskdatabase/templates/taskdatabase/filter/filter.html
rename to atdb/taskdatabase/templates/taskdatabase/filter/filter_xxx.html
diff --git a/atdb/taskdatabase/templates/taskdatabase/index.html b/atdb/taskdatabase/templates/taskdatabase/index.html
index 592574f4787eac1c0da9ee24b1180266cc1af899..1187bbc5b849a3ecfc487c03bf39d48b8177923f 100644
--- a/atdb/taskdatabase/templates/taskdatabase/index.html
+++ b/atdb/taskdatabase/templates/taskdatabase/index.html
@@ -34,7 +34,7 @@
         {% include 'taskdatabase/pagination.html' %}
        </div>
     </div>
-    <p class="footer"> Version 1.0.0 (4 feb 2021 - 16:00)
+    <p class="footer"> Version 1.0.0 (7 feb 2021 - 15:00)
 
 </div>
 
diff --git a/atdb/taskdatabase/urls.py b/atdb/taskdatabase/urls.py
index bddabc88d16811e3aeff0b16d6c829eea3abbefa..47ab03e1a24b7fb6f30a7406f87c6ac813d87947 100644
--- a/atdb/taskdatabase/urls.py
+++ b/atdb/taskdatabase/urls.py
@@ -83,6 +83,8 @@ urlpatterns = [
     path('tasks/set_filter/<filter>', views.TaskSetFilter, name='task-set-filter'),
     path('tasks/set_active_filter', views.TaskSetActiveFilter, name='task-set-active-filter'),
     path('tasks/task-set-onhold-filter/<onhold>', views.TaskSetOnHoldFilter, name='task-set-onhold-filter'),
+    path('tasks/clear_filter/', views.TaskClearFilter, name='clear-filter'),
+
     path('tasks/<int:pk>/set_status/<new_status>/<query_params>', views.TaskSetStatusTables2, name = 'task-setstatus'),
     path('tasks/set_status_multi/<new_status>/<query_params>', views.TaskMultiStatus, name='task-multi-setstatus'),
     path('tasks/set_multi_hold/<onhold>/<query_params>', views.TaskMultiHold, name='task-multi-hold'),
diff --git a/atdb/taskdatabase/views.py b/atdb/taskdatabase/views.py
index 191b504e4802f5a7f203280ec5dde7db7e6494e6..2b06e3b23d094a6bffabc57545efe2e35f36ddc1 100644
--- a/atdb/taskdatabase/views.py
+++ b/atdb/taskdatabase/views.py
@@ -172,8 +172,12 @@ class QueryView(SingleTableMixin, FilterView):
 
         query_list_of_ids = list(self.object_list.values_list('id'))[:limit]
 
+        filtered_tasks_as_list = []
+        for id in query_list_of_ids:
+            filtered_tasks_as_list.append(id[0])
+
         # store on the session
-        self.request.session['query_list_of_ids'] = query_list_of_ids
+        self.request.session['filtered_tasks_as_list'] = filtered_tasks_as_list
         return self.object_list
 
 
@@ -803,6 +807,12 @@ def TaskSetOnHoldFilter(request, onhold):
     request.session['task_onhold_filter'] = onhold
     return redirect('/atdb/?page=1')
 
+def TaskClearFilter(request):
+    request.session['task_filter'] = 'all'
+    request.session['task_onhold_filter'] = None
+    request.session['filtered_tasks_as_list'] = None
+    request.session['search_box'] = ''
+    return redirect('/atdb/?page=1')
 
 @login_required
 def ChangePriority(request, pk, priority_change, page=0):
@@ -869,13 +879,13 @@ def TaskSetStatusTables2(request, pk, new_status, query_params):
 @login_required
 def TaskMultiStatus(request, new_status, query_params):
     # get the list of id's from the session
-    query_list_of_ids = request.session['query_list_of_ids']
-    count = len(query_list_of_ids)
+    filtered_tasks_as_list = request.session['filtered_tasks_as_list']
+    count = len(filtered_tasks_as_list)
 
     if request.method == "POST":
 
-        for id in query_list_of_ids:
-            task = Task.objects.get(id=id[0])
+        for id in filtered_tasks_as_list:
+            task = Task.objects.get(id=id)
             task.new_status = new_status
             task.save()
 
@@ -893,13 +903,13 @@ def TaskMultiStatus(request, new_status, query_params):
 @login_required
 def TaskMultiHold(request, onhold, query_params):
     # get the list of id's from the session
-    query_list_of_ids = request.session['query_list_of_ids']
-    count = len(query_list_of_ids)
+    filtered_tasks_as_list = request.session['filtered_tasks_as_list']
+    count = len(filtered_tasks_as_list)
 
     if request.method == "POST":
 
-        for id in query_list_of_ids:
-            task = Task.objects.get(id=id[0])
+        for id in filtered_tasks_as_list:
+            task = Task.objects.get(id=id)
             task.resume = (onhold == 'resume')
             task.save()