...
welll...
when your at the "main coonsole view", you can take the tracks 1 at a time into the "edit waveform" window... you can apply effects like filter or frequency-specific compression to various freq ranges... and "see" the results beore and after switching back and forth from spectral display in the edit waveform window.
you could put each track in its "freq" range 1 at a time like that... then mixdown to 1 stereo track, and take THAT final track to the edit window and check it...
if I wanna... say... cut everything below 70 Hz, I'll use a high pass filter, then go to spectral view to "see" it was cut... low pass everything below say 20k to get rid of high freq hissies.... after that, you can see easily on spectral display where you now have blank space where you had color before...
a more advanced technique would be to use compression on a specific freq range (out of my league, but that might be you...lol)
once you get used to taking main console tracks one at a time into the edit waveform window, its more a matter of getting to used to using the various affects and tweaking them than anything else... I typically save a "version" of every track after each applied change... giving me a "history" of each step on every track, but thie eats up hard drive space (which is cheap nowadays though)
when I am all done with the individual tracks, I bounce down (mix down...) to one stereo track and go over that in the edit waveform window and save that as a "mix"
once you get used to playing with tracks and editing/effects application on them... you'll like it, its fairly straightforward.
