Add 'hidden' node attribute

templates/index.html

@@ -35,7 +35,7 @@
         {% if nodes and config.index_node_list %}
         <ul>
         {% for node in nodes | slice(end=config.index_node_count) %}
-        {% if node.id != root_node.id %}
+        {% if node.id != root_node.id and not node.hidden %}
         <li><a href="/node/{{node.id}}">{{node.title}}</a></li>
         {% endif %}
         {% endfor %}

templates/tree.html

@@ -48,7 +48,7 @@
     {% if nodes %}
     <h2>All nodes</h2>
     <ul>
-    {% for node in nodes %}
+    {% for node in nodes | filter(attribute="hidden", value=false)%}
     <li>
         <a href="/node/{{node.id}}">{{node.title}}</a>
         {% if node.connections or config.tree_node_text %}