2016 Camaro LGX v6 - temp and SCIAP sensors info needed

I want to add a SCIAP sensor to my 2016 LGX Camaro v6 (E82 BCM). It's supercharged with Edelbrock PD blower. At one point I understood that I don't know what my temps in VCM scanner are.

I have 4 temp channels:

Ambient Air Temp (SAE)
Intake Air Temp
Intake Air Temp 2
Manifold Air Temp

The ambient air sensor speaks for itself, the Intake Air Tem should be the MAF embedded sensor (the one I taped into and moved to MAP sensor via harness) and it should display the manifold temp after the IC brick. But the Intake Air Temp 2 and Manifold temp - what are these? Does BCM calculate the MAnifold temp for NA automagically based on the IAT? Can I bring IAT back to MAF sensor and set a dedicated temp sensor channel for TMAP?

The second part of the question - is there a way to add a channel for the SCIAP in E82? I want the BCM to use it in calculations

I would really appreciate any proven and tested info on the subject)