Adjust GS effect settings.
Effects can be adjusted in two modes dependant on the settings of the 'Use effect macro' and 'Use chorus macro' checkboxes:
Macro mode will be sufficient in most practical cases. Setting of individual parameters is more difficult, but can give very good results when done right.
The mode settings (position of the checkboxes) can be saved with the "Save settings" menu entry. The current values of the listboxes or parameter sliders are stored in the midi file.