small toggle switch, something along the lines....

So, alright I mistakenly made this mockup on the Pan knobs, but ideally this would be on the Send Knobs.
Alternatively, it wouldn't have to be a visual element and could be selected by right clicking the control.
It would have the following routing options:
- Pre-send;
- Post-send;
- Send-global;
So essentially, each knobs could override the
send's global PRE / POST switch that would still be
available as it exist now.
This would give it a lot more options to have tracks sending to a
full 100% wet reverb send effect, some with the PRE, some with the POST,
instead of having to create two seperate Send Tracks one with the
Pre switch on, the other with the Post switch on.
Like I said, this could just be a non-visual option for
power Live users (sort of like the Hi-Quality on EQ-Eight