You can create an XML diagram in an existing XSM in any of the following ways:
To create a new XSM with an XML diagram, select , choose to create an XML model from the Model type list, choose XML Model Diagram, and click OK.
The feature is only available for free symbols in an XML diagram.
Right-click a symbol in an XML diagram and select one of these features: Expand: the hierarchy below a symbol is partially expanded (only the first level). Expand All: the hierarchy below a symbol is fully expanded (all levels). Collapse: the hierarchy below a symbol is hidden. Arrange Symbols: the hierarchy below a symbol is properly displayed.