Rearranging the tree
You can move an existing node to another part of the tree. If it has any children, they will move with it. So will the articles associated with the nodes. You can also sort the nodes alphabetically.
Moving a node with the keyboard
Select a node, then press [Shift] and any of the arrow keys.
Moving a node with drag and drop
Select a node, then press and hold the left mouse key. Move the cursor until another node is highlighted, then release the mouse button. This makes the original node a child of the destination node.
To move a node to locate it after the destination node as a sibling, hold down the [Shift] key, then press and hold the left mouse button. Move the cursor until another node is highlighted, then relase both the [Shift] key and the mouse button.
Moving a set of nodes
You can right click a node and make all the nodes below it become its children. Choose Move from the context menu, then Next siblings move Right.
You can also make all a node's children become its siblings. Right click the node, choose Move from the context menu, then All children move Left.
Sorting the tree
You can sort the nodes in a tree or subtree alphabetically.
To sort one level of a tree, select a node then
To sort all levels in the tree, right click any node in the tree, choose Sort from the context menu then Total tree (all levels). This will sort the whole tree, not just the subtree beginning at the selected node.