You can access to the diagram tables and browse through their objects by mean of the Object Tree View, that represent all the diagram objects, including tables, in a tree-like structure.
To expand table, click on the + sign near the table name, it will show you table columns and indexes. Click on the "-" sign to roll up the list.
Examine the following table-related features in the Object Tree View:
§Double click on a table to call Table Editor for it.
§Right-click on a table to see shortcut menu. Select the Goto object item to select the table on the diagram and scroll diagram to it.
§Double-click on a column to call the Column Editor.
§Double-click on a constraint to call the Constraint Editor.
§Double-click on an index to call the Index Editor.
§Double-click on a trigger to call the Trigger Editor.
§Double-click on a rule to call the Rule Editor.
See also:
Workspace: Docking Windows
Diagram Objects: Column Editor | Table Editor | Index Editor