diff --git a/Documentation.md b/Documentation.md
index ab198aa..4a8e226 100644
--- a/Documentation.md
+++ b/Documentation.md
@@ -371,6 +371,27 @@ if ui:treePush(...) then
 end
 ```
 
+#### open = ui:treeStatePush('node'/'tab', title)
+#### open = ui:treeStatePush('node'/'tab', title, [image](#images))
+#### open = ui:treeStatePush('node'/'tab', title, [image](#images), 'collapsed'/'expanded')
+Same as [`ui:treePush`](#open--uitreepushnodetab-title), but the 'collapsed'/'expanded' argument sets the current state of the tree instead of just specifying the initial state.
+
+Be sure to call `ui:treeStatePop` if the tree is open.
+
+#### ui:treeStatePop()
+Ends an open tree started with `ui:treeStatePush`. Call this at the end of every open treeState.
+
+#### ui:treeState('node'/'tab', title, body)
+#### ui:treeState('node'/'tab', title, [image](#images), body)
+#### ui:treeState('node'/'tab', title, [image](#images), 'collapsed'/'expanded', body)
+Equivalent to:
+```lua
+if ui:treeStatePush(...) then
+	body(ui)
+	ui:treeStatePop()
+end
+```
+
 ### Popups
 
 #### open = ui:popupBegin('dynamic'/'static', title, x, y, width, height, [flags](#flags)...)