diff --git a/docs/admin/engines/configured_engines.rst b/docs/admin/engines/configured_engines.rst
index c7b6a1f52..8599e227f 100644
--- a/docs/admin/engines/configured_engines.rst
+++ b/docs/admin/engines/configured_engines.rst
@@ -6,25 +6,37 @@ Configured Engines
 
 .. sidebar:: Further reading ..
 
+   - :ref:`settings categories_as_tabs`
    - :ref:`engines-dev`
    - :ref:`settings engine`
-
-Explanation of the :ref:`general engine configuration` shown in the table
-:ref:`configured engines`.
+   - :ref:`general engine configuration`
 
 .. jinja:: searx
 
-   SearXNG supports {{engines | length}} search engines (of which {{enabled_engine_count}} are enabled by default).
+   SearXNG supports {{engines | length}} search engines (of which
+   {{enabled_engine_count}} are enabled by default).  The UI displays the tabs
+   that are configured in :ref:`categories_as_tabs <settings
+   categories_as_tabs>`.  In addition to these main categories (aka *tabs*),
+   engines can be added to *secondary* categories (aka *groups*).  A *tab*,
+   *group* or *engine* can be selected with a `!` (*bang*) in the
+   :ref:`search-syntax`.
+
+.. contents:: Contents
+   :depth: 2
+   :local:
+   :backlinks: entry
+
+.. jinja:: searx
 
    {% for category, engines in categories_as_tabs.items() %}
 
-   {{category}} search engines
+   tab ``!{{category.replace(' ', '_')}}``
    ---------------------------------------
 
-   {% for group, engines in engines | group_engines_in_tab %}
+   {% for group, group_bang, engines in engines | group_engines_in_tab %}
 
    {% if loop.length > 1 %}
-   {{group}}
+   {% if group_bang %}group ``{{group_bang}}``{% else %}{{group}}{% endif %}
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    {% endif %}
 
@@ -36,7 +48,7 @@ Explanation of the :ref:`general engine configuration` shown in the table
         - :cspan:`3` :ref:`Supported features <engine file>`
 
       * - Name
-        - Shortcut
+        - bang
         - Module
         - Disabled
         - Timeout
diff --git a/searx/static/themes/simple/src/less/definitions.less b/searx/static/themes/simple/src/less/definitions.less
index ef6b02b2c..aa50eff50 100644
--- a/searx/static/themes/simple/src/less/definitions.less
+++ b/searx/static/themes/simple/src/less/definitions.less
@@ -113,8 +113,8 @@
   --color-toolkit-engine-tooltip-background: #fff;
   --color-toolkit-loader-border: rgba(0, 0, 0, 0.2);
   --color-toolkit-loader-borderleft: rgba(255, 255, 255, 0);
-  --color-doc-code: #300;
-  --color-doc-code-background: #fdd;
+  --color-doc-code: #003;
+  --color-doc-code-background: #ddeaff;
 }
 
 .dark-themes() {
@@ -225,8 +225,8 @@
   --color-toolkit-engine-tooltip-background: #222;
   --color-toolkit-loader-border: rgba(255, 255, 255, 0.2);
   --color-toolkit-loader-borderleft: rgba(0, 0, 0, 0);
-  --color-doc-code: #fdd;
-  --color-doc-code-background: #300;
+  --color-doc-code: #003;
+  --color-doc-code-background: #bdcadf;
 }
 
 /// Dark Theme (autoswitch based on device pref)
diff --git a/searx/static/themes/simple/src/less/preferences.less b/searx/static/themes/simple/src/less/preferences.less
index 6913bbb90..c4c32a460 100644
--- a/searx/static/themes/simple/src/less/preferences.less
+++ b/searx/static/themes/simple/src/less/preferences.less
@@ -121,6 +121,15 @@
       .ltr-text-align-left();
       font-weight: normal;
       background: var(--color-settings-engine-group-background);
+
+      .group-bang {
+        .ltr-margin-left(1rem);
+        .rounded-corners-tiny;
+        background: var(--color-doc-code-background);
+        color: var(--color-doc-code);
+        padding: 0.2rem;
+        border: 0 none;
+      }
     }
 
     .name,
diff --git a/searx/templates/simple/preferences.html b/searx/templates/simple/preferences.html
index 7f9be5693..414966289 100644
--- a/searx/templates/simple/preferences.html
+++ b/searx/templates/simple/preferences.html
@@ -314,9 +314,9 @@
         <th>{{ _("Max time") }}</th>{{- "" -}}
         <th>{{ _("Reliability") }}</th>{{- "" -}}
       </tr>
-      {% for group, engines in engines_by_category[categ] | group_engines_in_tab %}
+      {% for group, group_bang, engines in engines_by_category[categ] | group_engines_in_tab %}
       {% if loop.length > 1 %}
-      <tr><th colspan="9" class="engine-group">{{_(group)}}</th></tr>
+      <tr><th colspan="9" class="engine-group">{{_(group)}}{% if group_bang %}<span class="group-bang">{{group_bang}}</span>{% endif %}</th></tr>{{- "" -}}
       {% endif %}
       {% for search_engine in engines %}
       {% if not search_engine.private %}
diff --git a/searx/webutils.py b/searx/webutils.py
index a7fe22741..1c2ca6b33 100644
--- a/searx/webutils.py
+++ b/searx/webutils.py
@@ -175,4 +175,8 @@ def group_engines_in_tab(engines: Iterable[Engine]) -> List[Tuple[str, Iterable[
     def engine_sort_key(engine):
         return (engine.about.get('language', ''), engine.name)
 
-    return [(groupname, sorted(engines, key=engine_sort_key)) for groupname, engines in sorted_groups]
+    ret_val = []
+    for groupname, engines in sorted_groups:
+        group_bang = '!' + groupname.replace(' ', '_') if groupname != DEFAULT_GROUP_NAME else ''
+        ret_val.append((groupname, group_bang, sorted(engines, key=engine_sort_key)))
+    return ret_val