config file for multiple chains

[HikaruG]

Question

I would like to know how I should add chain B to an existing horcrux cluster for chain A.

Context

Current config for chain A's horcrux 3-2 setup:

signMode: threshold
thresholdMode:
  threshold: 2
  cosigners:
  - shardID: 1
    p2pAddr: tcp://172.31.0.X:2222
  - shardID: 2
    p2pAddr: tcp://172.31.0.Y:2222
  - shardID: 3
    p2pAddr: tcp://172.31.0.X:2222
  grpcTimeout: 1000ms
  raftTimeout: 1000ms
chainNodes:
- privValAddr: tcp://<public-ip1>:1234
- privValAddr: tcp://<public-ip2>:1234
debugAddr: ""
grpcAddr: ""

I would like to use the same signers X,Y,Z which would connect to chain B's fullnodes public-ip3 and public-ip4
From v3 docs it seems feasible as you can create sharded-keys for different chains, but I couldn't find information as to how to modify the config file.

Any help would be greatly appreciated!

[agouin]

You can simply add the additional chain sentries to the chainNodes section. Horcrux determines the chain ID from the sign requests that come from the sentries to know which shard to sign with.