How to create a H2O cluster on google cloud with static external IP?

Creating a new H2O-3 Cluster deployment in google cloud gives only 2 options for reserving an IP address: Ephemeral and None. Is it possible to create a h2o cluster with a static IP address. Using the "addresses" command in gcloud like:

gcloud compute addresses create h2oflow --addresses /* ephemeral external IP assigned to h2o cluster */

assigns the h2oflow address to only 1 of the nodes in the cluster. Is it possible to assign a static IP to an entire cluster of h2o nodes?