LinPlug Spectral - Manual (Page 55)

Effects
Spectral has 6 independent, simultaneously-available stereo effects
modules. Each module can be set to one of many different effects. At the
end of effects chain is a Master EQ unit.
On the right of the Effects label is an On/Off switch for the currently shown
effect.
Next to it are the effects name which can be clicked and then turns into a
menu allowing you to select any of the available effect types.
On the top right you find the Tool Menu as described in the Tool Menu info
box on page 15.
On the very right of the Effects Section there are 7 switches which
correspond with the available effects units. Each switch shows the name of
the currently selected effect type for each unit. The currently visible unit is