Hello!
@vscorpio: An envelope generator is currently not planned, but we hear you.
Violas are integrated in the Strings patches. If you want all instruments (or sections) available as solo instruments, you might be interested in our Special Editions or Instrument collections.
@Olivier:
1) Samples from different instruments are layered in different octaves to have a bigger overall range. The samples you menation are not left out. For example in the keyboard range C2 to B3 of the patch "13 WW Long" you hear samples from C1 to B2 and samples from C2 to B3 layered. The higher you get in this range, the softer the suboctave will get. From C4 on the suboctave is not present.
4) You can find the marcato articulation under Long notes (switch A#0) / Marcato (switch C#1). The marcato attack of this articulation can further be controlled by CC3.
5) Legato Mode affects all performance interval patches (that's the solo instrument patches in Vienna Smart Orchestra). This option cannot be set individually for slots in Synchron Player. It's possible to control the option with CC indeed. Simply add it on the Control page.
Best regards,
Andi
Vienna Symphonic Library