The group structure of the database content is displayed in the Navigation bar. You can drag objects directly into your matrix model using drag and drop.
When you create a new matrix model or open an existing matrix model, it opens on a tab. You can open several models and switch back and forth between them by clicking the corresponding tab.
Symbols tab
Disable the Row or Column check box to temporarily hide the respective objects in the matrix model.
Connection type tab
Enable the Display check box before a connection type to temporarily hide it in the matrix model. Enable the Default check box to define the relevant connection type as a default connection (can be set by double-clicking a cell). This automatically enables the Display check box.