Adaptive audio clip workflow

I'm trying to understand the workflow with adaptive audio clips. Let say that all my media have audio with 8 channels : 5 HF microphones, 2 two booms microphones and 1 downmix. I set these clips as adaptive 8 channels clips and create a timeline with adaptive 8 audio tracks. So far so good for editing. But what happens when i want to mix every individual channels ? I don't find a way to do that in Fairlight.
The other option is to set, before editing, my clips as 8 mono channels and create in my timeline many many mono tracks but that means that i will have to manage a lot of tracks which can be very messy and create and complicate a lot any moves in the timeline.
I don't understand the point of adaptive tracks if at some point, it's impossibe to mix each channel individually.
What am i missing?