The NETDRAW procedure enables you to specify multiple trees in the same Network data set; each tree is drawn separately in the same diagram with all the roots appearing at the left edge of the diagram ...

Tree diagrams are a way of showing combinations of two or more events. Each branch is labelled at the end with its outcome and the probability is written alongside the line.

MS XML Notepad 2007 <BR><BR>edit: just to clarify, this is an xml file editor that has a tree view pane on the left. You can right click and expand the whole tree, or leave it collapsed.