The user manual shows channel level in the scribble strip however with the version of firmware I'm using I only see a track number, this is less useful to me than the channel level since the metering is naturally only indicative.
Incidentally, I have tried disabling channel numbers in the S1 Pro UI on the basis that they might be shown if switched on however they seem reluctant to go away at the moment anyway. I have all channel number boxes unticked yet the continue to show.