LinPlug Organ 3 - Manual (Page 10)

Controls
Users have the option of controlling Organ 3´s dials in either a circular or
a linear manner depending on the Dial Mode setting, located under the
“Settings” menu.
Holding down the ALT key while clicking on a control changes the
selected control's value a minimum step upwards (when clicking in the
upper half of the control) or a minimum step downwards (when clicking in
the lower half of the control).
Holding down the CTRL key (PC) respectively COMMAND key (Apple)
while clicking on a control sets the control to its default value (e.g. for
volume controls it sets the control's value to -6 dB).
All controls can be automated using external MIDI messages. To do this
you need to use Organ 3's ECS (Easy Controller Setup) which is
described in the “Organ Menu”- section of this manual.
LinPlug Organ 3 User Guide Page 10