Targeting peers in fabric-gateway-go sdk

[tittuvarghese]

Is there any way to select / target peers using fabric-gateway-go sdk. Following are the features / requirement which I'm trying to experiment.

1. Discovering peers.
2. Targeting some of the peers discovered for transaction proposals.
3. Listen for chain-code events from some of the peers.

This is primarily to solve problems of application trying to get endorsement from a peer located in another data-center / region or to have local peer preferences.

@bestbeforetoday I feel like you might be able to help in this.