Hello

Unfortunately it isn't possible because the vibrato is "integrated" within the samples.

Even if the SE-Library contains quite a lot of samples it only comes with a few for each instrument (no "sus without vib")

Perhaps you can get a sound with less or no vibrato when you route the signal through a pitch tuner (melodyne etc.).

If work with Cubase 6 you have a VST-pitch tuner effect which you could install within the instrument track.

But I didn't ever checked this solution... could be that it will work better than we think... don't know.

Best

Beat Kaufmann

A couple comments (as a strings player):

First, in many cases (particularly when playing legato), a strings player will not play an open string precisely because it will not have vibrato, but will play the note in position on a lower string.  When all things are considered, it is better that those notes have vibrato than not (the lowest open string would be an exception).

Second, although I do not recall exactly off the top of my head, check the natural harmonics sustain patches in the extended solo strings library.  IIRC, the first note of the harmonic series included for each string is the open string, and that the notes are played non-vibrato.  Because of how the natural harmonics patches are set up using them will require some arrangement adjustments.  Rather than being at pitch, notes are arranged by string, by their partial order: open string; octave; octave + fifth; etc.  That is the only way to do it, as certain partial notes exist on more than one string, and will sound different depending upon which string is used to play them.  That VSL included the different options is a good thing.  Again, IIRC all partials are included through the three octave partial (including the naturally out-of-tune dominant 7th partial).