okay, if you also want to add in music, instead of bussing to a master fader from the stereo aux, feed it to another stereo aux and add the the plugins there and send that to the master fader.
You can send the music tracks to the master fader from where ever it's coming from.
The Voice chain is considered a sub-mix... a chain that deals with all the processing of the voice. Another sub-mix is the treatment of the music. A master fader is where all these things are brought back together again.
If you really want to see how these things are dealt with, download
these sessions under "New Updated Sessions".
Even if you don't have the Waves plugins or the audio, you can see how things are chained by a professional mastering engineer bu studying your mix window. These are MBox sessions. If you really want to know what's going on, I'd recommend buying the course. It is full of tips. I do believe, however, that you will learn more than you'll ever need if you actually read the PTLE manual.