diff --git a/changedetectionio/blueprint/ui/__init__.py b/changedetectionio/blueprint/ui/__init__.py
index 52488684..ce4bb716 100644
--- a/changedetectionio/blueprint/ui/__init__.py
+++ b/changedetectionio/blueprint/ui/__init__.py
@@ -159,12 +159,20 @@ def construct_blueprint(datastore: ChangeDetectionStore, update_q, worker_handle
     def mark_all_viewed():
         # Save the current newest history as the most recently viewed
         with_errors = request.args.get('with_errors') == "1"
+        tag_limit = request.args.get('tag')
+        logger.debug(f"Limiting to tag {tag_limit}")
+        now = int(time.time())
         for watch_uuid, watch in datastore.data['watching'].items():
             if with_errors and not watch.get('last_error'):
                 continue
-            datastore.set_last_viewed(watch_uuid, int(time.time()))
 
-        return redirect(url_for('watchlist.index'))
+            if tag_limit and ( not watch.get('tags') or tag_limit not in watch['tags'] ):
+                logger.debug(f"Skipping watch {watch_uuid}")
+                continue
+
+            datastore.set_last_viewed(watch_uuid, now)
+
+        return redirect(url_for('watchlist.index', tag=tag_limit))
 
     @ui_blueprint.route("/delete", methods=['GET'])
     @login_optionally_required
diff --git a/changedetectionio/blueprint/watchlist/templates/watch-overview.html b/changedetectionio/blueprint/watchlist/templates/watch-overview.html
index 60fdddbf..af98d416 100644
--- a/changedetectionio/blueprint/watchlist/templates/watch-overview.html
+++ b/changedetectionio/blueprint/watchlist/templates/watch-overview.html
@@ -214,9 +214,14 @@ document.addEventListener('DOMContentLoaded', function() {
             <li id="post-list-mark-views" class="{%- if has_unviewed -%}has-unviewed{%- endif -%}" style="display: none;" >
                 <a href="{{url_for('ui.mark_all_viewed',with_errors=request.args.get('with_errors',0)) }}" class="pure-button button-tag " id="mark-all-viewed">Mark all viewed</a>
             </li>
+        {%-  if active_tag_uuid -%}
+            <li id="post-list-mark-views-tag">
+                <a href="{{url_for('ui.mark_all_viewed', tag=active_tag_uuid) }}" class="pure-button button-tag " id="mark-all-viewed">Mark all viewed in '{{active_tag.title}}'</a>
+            </li>
+        {%-  endif -%}
             <li>
                <a href="{{ url_for('ui.form_watch_checknow', tag=active_tag_uuid, with_errors=request.args.get('with_errors',0)) }}" class="pure-button button-tag" id="recheck-all">Recheck
-                all {%- if active_tag_uuid-%}  in "{{active_tag.title}}"{%endif%}</a>
+                all {% if active_tag_uuid %}  in '{{active_tag.title}}'{%endif%}</a>
             </li>
             <li>
                 <a href="{{ url_for('rss.feed', tag=active_tag_uuid, token=app_rss_token)}}"><img alt="RSS Feed" id="feed-icon" src="{{url_for('static_content', group='images', filename='generic_feed-icon.svg')}}" height="15"></a>
diff --git a/changedetectionio/tests/test_group.py b/changedetectionio/tests/test_group.py
index e166a8da..f8791da8 100644
--- a/changedetectionio/tests/test_group.py
+++ b/changedetectionio/tests/test_group.py
@@ -236,39 +236,41 @@ def test_group_tag_notification(client, live_server, measure_memory_usage):
     assert b'Deleted' in res.data
 
 def test_limit_tag_ui(client, live_server, measure_memory_usage):
-    
 
-    test_url = url_for('test_endpoint', _external=True)
-    urls=[]
+    test_url = url_for('test_random_content_endpoint', _external=True)
 
-    for i in range(20):
-        urls.append(test_url+"?x="+str(i)+" test-tag")
-
-    for i in range(20):
-        urls.append(test_url+"?non-grouped="+str(i))
-
-    res = client.post(
+    # A space can label the tag, only the first one will have a tag
+    client.post(
         url_for("imports.import_page"),
-        data={"urls": "\r\n".join(urls)},
+        data={"urls": f"{test_url} test-tag\r\n{test_url}"},
         follow_redirects=True
     )
-
-    assert b"40 Imported" in res.data
+    tag_uuid = get_UUID_for_tag_name(client, name="test-tag")
+    assert tag_uuid
 
     res = client.get(url_for("watchlist.index"))
     assert b'test-tag' in res.data
+    client.get(url_for("ui.form_watch_checknow"), follow_redirects=True)
+    wait_for_all_checks(client)
+    client.get(url_for("ui.form_watch_checknow"), follow_redirects=True)
+    wait_for_all_checks(client)
 
-    # All should be here
-    assert res.data.count(b'processor-text_json_diff') == 40
+    # Should be both unviewed
+    res = client.get(url_for("watchlist.index"))
+    assert res.data.count(b' unviewed ') == 2
 
-    tag_uuid = get_UUID_for_tag_name(client, name="test-tag")
 
-    res = client.get(url_for("watchlist.index", tag=tag_uuid))
+    # Now we recheck only the tag
+    client.get(url_for('ui.mark_all_viewed', tag=tag_uuid), follow_redirects=True)
+    wait_for_all_checks(client)
+
+    with open('/tmp/fuck.html', 'wb') as f:
+        f.write(res.data)
+    # Should be only 1 unviewed
+    res = client.get(url_for("watchlist.index"))
+    assert res.data.count(b' unviewed ') == 1
+
 
-    # Just a subset should be here
-    assert b'test-tag' in res.data
-    assert res.data.count(b'processor-text_json_diff') == 20
-    assert b"object at" not in res.data
     res = client.get(url_for("ui.form_delete", uuid="all"), follow_redirects=True)
     assert b'Deleted' in res.data
     res = client.get(url_for("tags.delete_all"), follow_redirects=True)