Several questions about Elastic Agent standalone mode

Elastic Stack Elastic Agent
1
  • Why does the documentation suggest downloading the ZIP instead of using the MSI installer?
  • If I need to add another integration to the agent, is it enough to simply modify the elastic-agent.yml file and restart the agent?
  • I followed the procedure exactly as described in the documentation, but I'm getting errors like this one:
Filebeat is unable to load the ingest pipelines for the configured modules because the Elasticsearch output is not configured/enabled. If you have already loaded the ingest pipelines or are using Logstash pipelines, you can ignore this warning.
  • The only change I made to the yml file generated in Kibana was adding the API key. Do I need permissions to create pipelines? Why isn't that included by default in the yml generated by Kibana?

Thanks in advance!