diff --git a/odin/adapters/parameter_tree.py b/odin/adapters/parameter_tree.py
index 3d17fc81..2623a6d6 100644
--- a/odin/adapters/parameter_tree.py
+++ b/odin/adapters/parameter_tree.py
@@ -7,6 +7,7 @@
 
 James Hogge, Tim Nicholls, STFC Application Engineering Group.
 """
+from platform import node
 
 
 class ParameterTreeError(Exception):
@@ -203,13 +204,20 @@ def __recursive_build_tree(self, node, path=''):
 
         # Convert list or non-callable tuple to enumerated dict ; TODO - remove this?
         if isinstance(node, list) or isinstance(node, tuple):
-            node = {str(i): node[i] for i in range(len(node))}
+            #print "BUILD 1 I AM AT ", type(node), "node", node, "path", path
+            
+            return [self.__recursive_build_tree(elem, path=path) for elem in node]
+            #node = {str(i): node[i] for i in range(len(node))}
 
         # Recursively check child elements
         if isinstance(node, dict):
+            #print "BUILD 2 I AM AT ", type(node), "node", node, "path", path
             return {k: self.__recursive_build_tree(
                 v, path=path + k + '/') for k, v in node.items()}
-
+        
+        #if isinstance(node, list) or isinstance(node, tuple):
+            #print "BUILD 3 I AM AT ", type(node), "node", node, "path", path
+             
         return node
 
     def __recursive_populate_tree(self, node):
@@ -224,13 +232,20 @@ def __recursive_populate_tree(self, node):
         """
         # If this is a branch node recurse down the tree
         if isinstance(node, dict):
+            #print "POPULATE 1 I AM AT", type(node), "node", node
             return {k: self.__recursive_populate_tree(v) for k, v in node.items()}
 
+        if isinstance(node, list) or isinstance(node, tuple):
+            #print "POPULATE 2 I AM AT", type(node), "node", node
+            return [self.__recursive_populate_tree(item) for item in node]
+        
         # If this is a leaf node, check if the leaf is a r/w tuple and substitute the
         # read element of that tuple into the node
         if isinstance(node, ParameterAccessor):
+            #print "POPULATE 3 I AM AT", type(node), "node", node
             return node.get()
 
+        #print "POPULATE 4 I AM AT", type(node), "node", node
         return node
 
     # Replaces values in data_tree with values from new_data