diff --git a/docs/_ext/scrapydocs.py b/docs/_ext/scrapydocs.py
index 1fa1c93d6..f0827f2b1 100644
--- a/docs/_ext/scrapydocs.py
+++ b/docs/_ext/scrapydocs.py
@@ -1,5 +1,82 @@
 from docutils.parsers.rst.roles import set_classes
 from docutils import nodes
+from sphinx.util.compat import Directive
+from sphinx.util.nodes import make_refnode
+from operator import itemgetter
+
+
+class settingslist_node(nodes.General, nodes.Element):
+    pass
+
+
+class SettingsListDirective(Directive):
+    def run(self):
+        return [settingslist_node('')]
+
+
+def is_setting_index(node):
+    if node.tagname == 'index':
+        # index entries for setting directives look like:
+        # [(u'pair', u'SETTING_NAME; setting', u'std:setting-SETTING_NAME', '')]
+        entry_type, info, refid, _ = node['entries'][0]
+        return entry_type == 'pair' and info.endswith('; setting')
+    return False
+
+
+def get_setting_target(node):
+    # target nodes are placed next to the node in the doc tree
+    return node.parent[node.parent.index(node) + 1]
+
+
+def get_setting_name_and_refid(node):
+    """Extract setting name from directive index node"""
+    entry_type, info, refid, _ = node['entries'][0]
+    return info.replace('; setting', ''), refid
+
+
+def collect_scrapy_settings_refs(app, doctree):
+    env = app.builder.env
+
+    if not hasattr(env, 'scrapy_all_settings'):
+        env.scrapy_all_settings = []
+
+    for node in doctree.traverse(is_setting_index):
+        targetnode = get_setting_target(node)
+        assert isinstance(targetnode, nodes.target), "Next node is not a target"
+
+        setting_name, refid = get_setting_name_and_refid(node)
+
+        env.scrapy_all_settings.append({
+            'docname': env.docname,
+            'setting_name': setting_name,
+            'refid': refid,
+        })
+
+
+def make_setting_element(setting_data, app, fromdocname):
+    refnode = make_refnode(app.builder, fromdocname,
+                           todocname=setting_data['docname'],
+                           targetid=setting_data['refid'],
+                           child=nodes.Text(setting_data['setting_name']))
+    p = nodes.paragraph()
+    p += refnode
+
+    item = nodes.list_item()
+    item += p
+    return item
+
+
+def replace_settingslist_nodes(app, doctree, fromdocname):
+    env = app.builder.env
+
+    for node in doctree.traverse(settingslist_node):
+        settings_list = nodes.bullet_list()
+        settings_list.extend([make_setting_element(d, app, fromdocname)
+                              for d in sorted(env.scrapy_all_settings,
+                                              key=itemgetter('setting_name'))
+                              if fromdocname != d['docname']])
+        node.replace_self(settings_list)
+
 
 def setup(app):
     app.add_crossref_type(
@@ -27,6 +104,12 @@ def setup(app):
     app.add_role('issue', issue_role)
     app.add_role('rev', rev_role)
 
+    app.add_node(settingslist_node)
+    app.add_directive('settingslist', SettingsListDirective)
+
+    app.connect('doctree-read', collect_scrapy_settings_refs)
+    app.connect('doctree-resolved', replace_settingslist_nodes)
+
 def source_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
     ref = 'https://github.com/scrapy/scrapy/blob/master/' + text
     set_classes(options)
diff --git a/docs/topics/settings.rst b/docs/topics/settings.rst
index 26a6d762d..a72a991e5 100644
--- a/docs/topics/settings.rst
+++ b/docs/topics/settings.rst
@@ -1015,6 +1015,16 @@ Default: ``"Scrapy/VERSION (+http://scrapy.org)"``
 
 The default User-Agent to use when crawling, unless overridden.
 
+
+Settings documented elsewhere:
+------------------------------
+
+The following settings are documented elsewhere, please check each specific
+case to see how to enable and use them.
+
+.. settingslist::
+
+
 .. _Amazon web services: http://aws.amazon.com/
 .. _breadth-first order: http://en.wikipedia.org/wiki/Breadth-first_search
 .. _depth-first order: http://en.wikipedia.org/wiki/Depth-first_search