Tracking 403b - vs Trad IRA vs RMD

We have a single Fidelity Trad IRA - and also a Fidelity 403b from our teaching days.
(thinking of a rollover from the 403b into the IRA to make record keeping simplier)

Have noticed over the years, as we review our Turbotax data,
that the IRA worksheet wasn't always keeping track of the ongoing Cost Basis -
and I don't think I was enterring the year end Market Value.
Both are solid entries now for future RMDs when they happen...

SO... was thinking about the "IRA Market Value" - and then thought about our 403b.....
What happens with that ?
There is no tracking in Turbotax -
so... do I need to keep track of it manually - and do I need Cost Basis ?

Also found the IRS note - that the RMDs must be taken from each "group" -
So the Trad IRA has its own RMD calc & withdrawal and the 403b has its own RMD calc & withdrawal.

Where, or how is the 403b withdrawal reflected in Turbotax - and is there any Cost Basis reflected ?