I like to add vibrato controlled by modwheel (or later a pedal), to a Session Strings 2 sound?
(already found the answer: wrench / lfo )
I'd like to do this too but not sure how to implement your answer?
Sustain can be modified to be a controller.
Instrument Options -> Controller -> Midi Controller #64 -> Controller Only. Then apply it to the effect using 'Learn Midi'.
Not sure how it applies to expression and modulation, but a basic sustain pedal works fine applying it to a rotator and an Organ for the Leslie effect.
