Thanks very much for your reply, Parrotspain!
I will try to clarify my issue. I did more reading to get a better understanding of what I am asking.
Softube Modular is a normal VST. It has stereo output, and four additional stereo outs (aux 1-4). After a lot of Cubase novice floundering, I found the context menu that activates the outputs on the instrument channel’s inspector. After even more floundering, I found the unhide context menu that shows all the output channels so they can be routed to hardware channels. So far, so good!
Softube Modular FX is a normal VST effect. It is exactly the same as above, except that it also has a stereo input. It has stereo output, and four additional stereo outs (aux 1-4). However, when Softube Modular FX is placed on an FX channel, I cannot find how to activate and connect the aux 1-4 stereo outs. My question is how you do this in Cubase, and also whether it is an ability of Cubase 8 LE, or whether I have to move up to Elements or higher to have the capability.
Thanks for reading!