Prefill AddrMan with addresses before nodes connect

I’ve been trying to use warnet to simulate getaddr/addr messages. For this issue → https://github.com/bitcoin/bitcoin/pull/33498#pullrequestreview-3319680730

This is my understanding of the current flow.
Deploy tanks → AddrMan is empty.
Tanks connect via addnode → handshake happens.
getaddr is sent → addr response is empty (nothing to send).

Desired flow:
Deploy tanks (isolated, no connections).
Prefill each tank’s AddrMan with addresses.
Connect tanks manually.
getaddr/addr exchange happens with actual addresses (up to 1000).

currenlty i have a scenario that prefills addrman before connecting to peers

I could create a script that can be run as a helper to prefill AddrMan, but I’m wondering whether this is something that has been discussed before, and whether I’m missing context on how warnet handles AddrMan entries.

use cases
Test getaddr/addr messages
Simulate AddrMan collisions
Observe timing in address relay