SmartNav gauge change/add

[Skman]

2016 Pete 389 isx15
I just got this truck and have a few things I've been trying to fine tune.
One problem is that I've got no diff temperature gauges. No mechanical and none on the SmartNav.
Is it possible to get them added into the SmartNav system by Peterbilt?
I have no more room on my dash for gauges...other than a pyro gauge when it comes in.
I do have a couple redundant gauges though.
I have a mechanical trans temp and manifold pressure gauge...but I also have them on the SmartNav.
I'd like to remove those from Smart NAV and add the diff temps...if possible.
Anyone ever done it?