I'm in the final mix/master stages of some of my recent audio work, and the lack of a certain tool has just struck me.

I'd like a plug-in EQ capable of displaying and manipulating frequency curves for multiple tracks simultaneously. While mixing I currently mouse back and forth between multiple EQ windows to change settings and mesh frequencies hundreds of times.

Imagine the ease of a plugin that would:

a) display EQ curves for multiple tracks in the same window, each in a different color

b) allow you to grab and manipulate those curves in visual relation to other curves

c) analyze incoming audio for each track and ghost up an original frequency overlay on demand

I may end up making this in Max/MSP then converting it to Pluggo, but if it already exists I would buy it right now. Is there something like this out there?