The data model consists of a number of tables joined by the key fields. The following screenshot contains functions that can be used to manipulate the layout of the data model:

The details of the available keys (from right to left) are given as follows:

• Collapse all: This reduces the tables to just their headers, thus hiding all
  the fields
• Show linked fields: Expands the tables enough to only display the key fields in each
• Expand all: Displays all the fields for each table
• Internal table viewer: Shows the internal representation of the data model
• Layout: Provides options to auto-align the table grid or space out across the screen
• Show preview: Toggles the data preview screen to either on or off