Saving the tree state
You may choose to save the state of the Tree pane whenever you close a TreePad database, so that when you reopen it, TreePad "remembers" which subtrees were expanded and displays the article in which you had been working before you closed the database.
To save the tree state, click Main menu: View⁄Options⁄Tree and tick the box marked Save and load tree state. By default this option is enabled. The tree state is stored inside the TreePad database.