How to install watcher in elasticsearch 6.7.0

Hello everyone!

I want to install watcher in elasticsearch 6.7.0 following this url: Download Watcher | Alerting for Elasticsearch

Firstly: I move to /usr/share/elasticsearch
The second: I use this command to install license and watcher
bin/elasticsearch-plugin install watcher

And I get this error:

ERROR: Unknown plugin watcher

How can I fix it? Thanks!

You don't have to. It's part of the default distribution now.

I don't I see watcher in kibana. How can display it ?

Probably because you don't have the license for it.
You need to activate the trial if you want to test it.