Why doesn't Shift+click work for fine plug-in adjustment in Cubase/Nuendo?
In order to use 'shift+click' for fine adjustment, a knob must be moved in 'linear' mode. VST plug-ins default to 'circular' mode.
If 'alt' is held whilst moving a knob then linear mode is entered and pressing shift+click will make fine adjustment is possible.
Cubase and Nuendo can be set to use linear mode by navigating to Preferences>Editing>Control and changing the knob mode. This means 'alt' will not have to be held to use shift+click.