The interactive filter display gives an overview of the filter parameters and makes it very easy
to adjust multiple filter parameters simultaneously. The vertical lines in the background
represent a logarithmic scale that correspond to the actual filter frequencies.
Drag the filter peak to adjust the Frequency and Peak
parameters for that filter.
Ctrl+click (Command+click on Mac) the filter peak to toggle between
the low-pass and high-pass filter responses.
Tip: Of course, all changes made in the filter display can be automated!