Try Skytree 2.0 today:

Feature Tour

Simply as you use Windows Explorer's treeview, Skytree support or kind of tree actions you may use.

Click left mouse button or press '[F2] ' to edit display text when the node gets focused.

Press '[Insert]' to add a sibling node of the focused node.

Press '[Shift]+[Insert]' to add a child node of the focused node.

Press '[Delete]' to delete the focused node(If a 'hintBeforeDelete' property is set to 'true', a message box will occur when delete).