Is it possible to let to GCP choose availability zone?

[vitaly_il]

  During a new VM launch,  GCP console allows to choose 'region' and 'zone', that translates to 'zone' in GCP CLI. For instance, '--zone=us-central1-a'.
  Occasionally, my 'gcloud compute instances create' fails with the following error 'code: ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS'.  I.e. choose zone doesn't have enough capacity for my instance type. It will be nice to have the ability to ask GCP to launch a new VM in a certain region, in any availability zone (as we have in another cloud provider). But I couldn't find such feature....