Lexicon Reverb/Effects Processor PCM96 Owner's Manual page 22

In the second control area, you can adjust the soft row parameters by click-
ing on and moving the sliders. Note that the soft row parameters vary from
preset to preset. Click the down arrow in the lower right corner to open the
third control area.
In the third control area (located at the bottom of the plug-in), you can
16 adjust all the parameters in the preset by clicking on and moving the sliders.
You can select different groups of parameters to adjust by clicking the but-