Maybe you are confusing things by using the term pre fader when this option doesn't exist in Cubase.
The input gain will affect the meter in both "Post Fader" & "Post Panner" settings.
It will not make any difference when metering is set to "Input"
Oh, dear, it's going to be a tougher transition from C6.5 than I thought
It's exactly the same
i7 email@example.com, 12Gb, W7HP x64, Cubase 8.05 Pro & 7.5.30 x64, Audient iD22, Alphatrack, Wavelab Elements 7.2.1.