Yeah, I understand. For me too it’s useful to get more of the timeline in view.
I will say though that my personal experience is that at some point getting more timeline horizontally is facing diminishing returns so to speak. I just don’t feel like turning sideways more than a certain amount regardless of if it’s mixer channels or timeline. And I also find that my way of working (for “TV” post mostly) essentially puts me in a place where other options are used anyway. So I don’t typically have to move that far up/down the timeline and if I do it’s often so far I’ll have to use markers or timecode to locate anyway.
As for ‘dozens of channels’ in the mixer; I definitely have that but I really don’t feel that I gain that much by going beyond 34". Again, since the first stage of my work is editing and pre-leveling the elements individually there isn’t really a need for me to look at dialog track #5 and then jump down/right to look at stereo effect track #11. Also, I measure levels at the output of a group channel rather than at the individual audio tracks. So all my dialog audio tracks go into a dialog group and from there the signal is sent (a copy of it) to a meter channel. That meter is always up on my secondary 24" screen. The main mix has it’s own meter as well on that same screen.
So during “pre-mix” I can always look over and see the level if I need to and never really have to ‘scroll’ to find what I’m looking for.
During the actual mix it really depends on the content how I’m working, but generally because of deliverables I’ll either balance the elements against each other riding group faders or VCA faders. Since there’s a limited amount of those they all fit within 34" during mix if I desire to see them all. I also use different layouts for different parts of the process, so if I want to double-check routing I have a key command that brings up mixer #4 which contains all output channels which are from where I get my mixes and stems. They all fit as well.
When it comes to touchscreens I just didn’t like the experience the times I tried the Raven (Slate). For mixing it was near useless for me and the thought of waving my arms around for hours was just not appealing. I use a physical touch sensitive motorized fader controller of some sort most of the time so that’s really the main input device for me and has been for decades at this point.
Anyway, interesting to read how others work and feel about it.