Halion Symphonic Orchestra Tremolo control?

I bought the Halion Symphonic Orchestra set and of the few Tremolo options I see, I can’t hear any Tremolo articulation at all… just sounds like any other Legato. Adjusting various settings has no effect.

Can anyone positively verify that the Halion Symphonic Orchestra has any perceptible Tremolo strings, and how to achieve them if so?

If not, can you suggest a free or cheap VST with very pronounced Tremolo articulation?

Thanks in advance!