CurrentRemoteUserIds 

Namespace: SynicSugar.P2P
Class: p2pInfo

public List CurrentRemoteUserIds;

Description 

UserIDs list of this connection. This Id is unique to be assigned by EOS.

using SynicSugar.P2P;
using UnityEngine;
[NetworkPlayer]
public class p2pSample : MonoBehaviour {
    [Synic(5)] public Vector3 pos;
    [Synic(5)] public Vector3 rotation;

    void SyncWithFakeTransformObject(){
        foreach(var id in p2pInfo.Instance.CurrentRemoteUserIds){
            ConnectHub.Instance.SyncSynic(id, 5, true);
        }
    }
}