LinPlug Spectral - Manual (Page 29)

The handles on the upper left and upper right corner allow adjustment of
the harmonics depending on their position in the frame: The harmonics
close to this side will change as you drag the handle, towards the other
side of the frame the change will be gradually less.
The round handle in the middle is the most powerful one, allowing you to
draw curves into the line of harmonics. This would be quite complicate to
describe, please try it, clicking on the middle handle and dragging the
mouse around, up and down as well as left and right, a curved shape of
harmonics will follow your movements.
The characteristic of the curve can be altered with the Curve Shape
modifier left of the large Editing Tool switch; its similar to the Phase Shape
control used to shape the envelope phases.
Edit Mode
There are several way to selectively edit only certain harmonics or filter
bands. If not otherwise notes, all being said now applies to both harmonics
as well as filter bands, for the sake of clarity we say harmonics and this
also means filter bands:
All is the most used form, all harmonics in the editor are available for
editing, you can draw in the editor as you like, the mouse determines the
level of each harmonic as you move it around.
Single is useful when editing single harmonics and when you not want to
accidentally change the neighbor harmonics. When in Single mode your
first click determines the harmonic edited as long as the mouse button is