Install agent, under the command. Manual steps is closed until you open it.
Open Install agent and leave the platform on Windows. Under the command, open Manual steps, if the one-liner cannot run. The three lines are what the script does: put the signed binary in C:\BEAgent, create agent.json from the install page, then run be-agent.exe install in an elevated PowerShell. Downloads are under /dl/ on this hub. Linux has the same disclosure, with /opt/be-agent and a systemd unit. This shot is Windows, opened, and nothing has been downloaded.
The one-liner itself is Install the agent on a machine. The page you send someone, which has the filled-in configuration file, is Hand someone the install page.