diff --git a/confluent/config/attributes.py b/confluent/config/attributes.py
index 37c27c43..62bf2802 100644
--- a/confluent/config/attributes.py
+++ b/confluent/config/attributes.py
@@ -52,7 +52,7 @@ nic = {
 # 'node', which can be considered a 'system' or a 'vm'
 node = {
     'groups': {
-        'type': (list, tuple),
+        'type': list,
         'default': 'all',
         'description': ('List of static groups for which this node is '
                         'considered a member'),
diff --git a/confluent/config/configmanager.py b/confluent/config/configmanager.py
index dc6750e0..fb2f23e4 100644
--- a/confluent/config/configmanager.py
+++ b/confluent/config/configmanager.py
@@ -575,7 +575,7 @@ class ConfigManager(object):
             for attrname in attribmap[node].iterkeys():
                 if (attrname not in attributes.node or
                         ('type' in attributes.node[attrname] and
-                        type(attribmap[node][attrname]) not in attributes.node[attrname]['type'])):
+                        not isinstance(attribmap[node][attrname],attributes.node[attrname]['type'])):
                     raise ValueError
                 newdict = {}
                 if (isinstance(attribmap[node][attrname], str)):
diff --git a/confluent/httpapi.py b/confluent/httpapi.py
index debd4dd7..72a216dd 100644
--- a/confluent/httpapi.py
+++ b/confluent/httpapi.py
@@ -38,11 +38,15 @@ def node_creation_resources():
         if attr.startswith("secret."):
             yield confluent.messages.CryptedAttributes(
                 kv={attr: None},
-                desc=attribs.node[attr]['description']).html() + '<br>'
+                desc=attribs.node[attr]['description']).html() + '<br>\n'
+        elif 'type' in attribs.node[attr] and list == attribs.node[attr]['type']:
+            yield confluent.messages.ListAttributes(
+                kv={attr: []},
+                desc=attribs.node[attr]['description']).html() + '<br>\n'
         else:
             yield confluent.messages.Attributes(
                 kv={attr: None},
-                desc=attribs.node[attr]['description']).html() + '<br>'
+                desc=attribs.node[attr]['description']).html() + '<br>\n'
 
 create_resource_functions = {
     '/node/': node_creation_resources,
diff --git a/confluent/messages.py b/confluent/messages.py
index 44cb5969..d20c0e99 100644
--- a/confluent/messages.py
+++ b/confluent/messages.py
@@ -45,6 +45,10 @@ class ConfluentMessage(object):
                 value = '********'
             if isinstance(val, list):
                 snippet += key + ":"
+                if len(val) == 0:
+                    snippet += ('<input type="{0}" name="{1}" value="" '
+                                ' "title="{2}">'
+                                ).format(type, key, self.desc)
                 for v in val:
                     snippet += ('<input type="{0}" name="{1}" value="{2}" '
                                 ' "title="{3}">'
@@ -274,11 +278,12 @@ class Attributes(ConfluentMessage):
 
 
 class ListAttributes(ConfluentMessage):
-    def __init__(self, node, kv, desc=''):
+    def __init__(self, node=None, kv=None, desc=''):
         self.desc = desc
-        self .kvpairs = {
-            node: kv
-        }
+        if node is None:
+            self.kvpairs = kv
+        else:
+            self .kvpairs = {node: kv}
 
 
 class CryptedAttributes(Attributes):