Modifying Matrices
Modifying presentation
If column headers are not legible, you can modify their presentation.
To display headers vertically:

In the
Display menu, select
Vertical.
Modifying cell contents
Removing a row or column
To remove a row or column from the matrix:

In the matrix menu bar, select
Row > Remove or
Column > Remove.
Connecting and disconnecting objects
You can modify a cell by connecting or disconnecting its related objects.
To modify cell contents:

Right-click the cell to open its pop-up menu.