All matrices are opened from Matrix Browser. To open the Matrix Browser, click View > Matrix Browser. The Matrix Browser is opened and is added to the main System Architect Browser. The Matrix Browser contains methodology tabs. Depending upon the configuration settings for the encyclopedia these tabs provide with different types of matrices for each methodology that is available.

Clicking a matrix opens the Matrix Editor.

When a matrix is activated, the Matrix menu is available.

Saves the current matrix to a default "User Matrix" definition.

Saves the current matrix to a chosen "User Matrix" definition.

Exports the current matrix to Excel, HTML, Word or CSV file.

Adds a row/column to the current matrix - creating a row/column definition.

If Vertical or Horizontal is selected, the column titles are switched to either position.

Fits the column widths to the widest cell in that column.

Switches the matrix to show intersections instead of text in cell.

Available for multi‑dimensional matrices, shows inferred intersections.

Reloads the matrix using the last settings (option to save current settings is given).

Prints the current matrix.

Shows a print preview of the current matrix.

Closes the open matrix.

To display the toolbar, right‑click the toolbar, and then click Customize > Matrix.

Right‑click in a cell to use these commands:

Opens the MatrixCell definition edit session.

Opens the column definition edit session.

Opens the row definition edit session.

Adds a row/column at the current location.

Removes the current row/column.

Reload the matrix.

Double clicking a matrix row or column heading will open the definition edit session.

Loads the default matrix for the methodology that is selected.

Opens the currently selected matrix and does not provide a default name. When this matrix is Saved, the Save As dialog appears requesting a new name for the matrix. This option can be used as an alternate way of saving a matrix with a different name.

Deletes the default saved matrix associated to this matrix type.

Loads an empty matrix with no columns or rows.

The Use Row Filter and Use Column Filter commands on the Matrix Filters enable you to decide whether the row and columns selected are the ones to use, or whether the filters are to be used. These settings are saved when the matrix has been saved.

Clicking on a column header will select it and deselect everything else.

Clicking on a row header will select it and deselect everything else.

Clicking on the top-left cell where the column and row header labels are will toggle selection of all cells.

Clicking while holding down the Control key adds or removes selections of cells in the column or row header that was clicked on. If you make an intersection and then remove the column, you are left with a gap in the selections where the column was removed.

The Control+Click action will also toggle selection of a cell, but note that in X in cell matrices, clicking will also cause setting or clearing of an intersection.