Feature Request: Allow users to configure a list of Elasticsearch base URLs in Console

[anhlqn]

Describe the feature:
In #7059, the base URL box was removed from Console, but there was a possibility to allow users to configure a list of base URLs, which is helpful for my use case.

I'm running 4 separate ES clusters with 4 Kibana instances. To prevent users from accidentally/intentionally making changes to mappings or delete indexes, I've disabled Console on all Kibana instances. With Kibana 4, I would have a dedicated Kibana for management on which I can connect to all 4 clusters in the base URL box. I can no longer do this since Kibana 5 and have to use a separate REST client that doesn't have all the features like Console.

Could you please consider allowing users to configure a list of Elasticsearch base URLs in Console?

[cjcenizal]

Closing this in favor of #48406.