Select one SmartShunt on Cerbo as battery monitor

How do I select one of “N” SmartShunts as the “battery monitor”?
System: Cerbo GX. Skylla-i. 3x SmartShunts, 1 on the starter battery for the boat, 1 on each of the two 24V house battery banks. Skylla-i output goes to the house 24V buss. Battery switches are used to connect either of the house banks to the house buss, for charge and to supply loads.
Intent: The voltage+current+temp from the “correct” shunt is conveyed from Shunt to Cerbo to Skylla, for input to Skylla’s charging algorithm. Note ambient temp for battery likely to exceed 30C and at start of charge cycle, battery bank sees 95A+ charge rate for a 420Ah bank; both indicators for the Skylla needing this input from the Shunt.
Problem 1: In the DVCC area, Cerbo calls all 3x SmartShunts the same thing, using product name, not including serial number, and not using my “custom names”. How do I select which one Shunt should be used by DVCC? See attached screenshots.
Problem 2: How do I verify that the correct information is being received by the Skylla?
Problem 3: There is an “automatic” mode listed for the Shunt for temp. What does that mean? Is the Cerbo automagical enough to pick the right Shunt in my charging scenario?
Problem 4: What is the proper means for and user to submit a “bug report” to Victron? As problem 1 seems like a bug.