Yes. Select all Tracks in the Mixconsole and then Q-Link them. There is a key shortcut for this as well. Hold Alt + shift on Windows. On Mac i don’t know.
With this you can move all faders alltogether.
I posted this answer a few days ago for a chap that had the same issue as you and this was my reply:
Forgive me if you know this already but you’re better of making sure you don’t have any headroom issues before you even start a project by simply reducing the Pre Gain on the master stereo buss by at least -6db!
If you can’t see the Pre Rack on the stereo buss turn it on by selecting the ‘Racks’ icon, towards the top left of the mixer and you will see Pre (Filters/Gain/Phase) in the list!
Now your headroom issues will be a thing of the past and you won’t be overloading all your plugins too!