The Data wizard allows you to modify the data on which
a diagram is based. The styling rules set for the diagram are not
affected by the changes.
To open the Data wizard, go to Diagram Editing mode and
choose Data>Edit Model.
The Data wizard has the following pages:
Welcome
Edit Your Data Model
Add and remove rows, where each row
represents an object in the model.
Add, remove, and rename columns, where
each column represents a property in the model.
Modify property values.
When modifying the data model, be aware that model properties
may already be used in the style rules defined for the diagram. If
you change a property name, the affected style rules may become inconsistent.
Therefore, when you try to remove or rename a property, a warning
message will be displayed indicating the style rules that will be
affected by the operation, if any. In case you need to rename a property,
the preferred path is to create the new property and modify the style
rules to depend on this new property. Once this is done, you can safely
remove the previous property using the Data wizard.