Darn the Sq8l is only available for Windows ...Guess I'll have to buy a true Sq8, lol. I have an alesis micron and korg micro corg and access virus classic b that I can use...They are just a pain to setup and program. I need more midi cables and 1\4 inch cables.
-Typical sampler functions such as envelopes or LFOs.
-"emotional" synth sounds
-"deep" melodies with melancholy and dichotomy
If you want to approach their sound then I would first suggest trying out with very few pieces of gear. And only add more when you have finished with the previous "step".
Building a sound is such step by step activity, although occasionally one can start by "randomly doing something" and then refine whatever interesting one finds. But for learning the "steps" it's easier to practice on each piece of gear separately. So that one learns to recognize their "palette".
You could for example take a monophonic VA synth and make a BoC synth track using only that one synth instance and at maximum one distortion of your choice and one reverb of your choice. If the distortion or the reverb doesn't really get you where you want to, then change them.
Also, don't believe in to the idea that "just by manipulating" you can create whatever you want. Sound doesn't work that way. Start with sounds that you like, then adjust them. You cannot make shit into gold (well sometimes you can, but getting good sounds out of shit/uninteresting sounds is more prone to not lead to anything, than starting with great sounds).