nikolas

First of all, I don't know how to do anything in sibelius. I'm a Finale user. Layering simply means putting "together" more than one sound. Another word would be doubling I guess. So you will need 1 midi track playing.... butter legato, and another playing sus vib and try to mix and match the volume with going in and out to sound more interesting.

some articulations in EWQLSO are named DFX, or mod wheel, or XF etc. These don't work with the velocity but with the modulation controller. This is the mod wheel and is the CC1 controller (the first controller that is). you can change the value while the note (event actually is called) is playing, so you get more natural crescentos, or fade ins, or change from one articulation to another, etc.

CC1 is "expression" and is used by EWQLSO instead of volume. It acts exactly like volume.

Volume (CC7) is mostly used initially for mixing purposes, rather than changing it every now and then.

I used Cubase SL3, so I can tell you that SX3 is most excellent. Go for it!