Notice there are a few options from the menu that appears, which generate different results: Selecting Drill Down expands the matrix for that row level, excluding all other row headings except the row header that was selected.
Notice that other top-level rows no longer appear in the matrix. This way to drill is a useful feature, and becomes especially cool when we get to the cross-highlighting section. To drill down on columns, select Columns from the Drill on menu that can be found in the upper left corner of the dating matrix diagram com. Note The drill down and drill up icons in the upper-left of the matrix visual only apply to rows. Stepped layout with matrix visuals The Matrix visual automatically indents subcategories in a hierarchy beneath each parent, called a Stepped layout.