Whether can mysql router connects to several MySQL InnoDB CLuster?

As suggested by MySQL, we can install MySQL Router service on application server.But how to configure the MySQL Router service when it needs to connect to several MySQL InnoDB Cluster?

For example, we have 2 InnoDB Clusters ClusterA and ClusterB.The applications connecting to the 2 clusters are under same host HostA.How can we configure in the mysql router on HostA, then we can use mysql router to connect 2 clusters.