Server not found in Eclipse neon

I want to add Tomcat to my eclipse, add tomcat steps to:

In Eclipse, Windows (window)--preferences (preferences)--servers (server)--Runtime Environment (Runtime environments)--Add, add, Tomcat server. Select Apache Tomcat v6.0 for the Tomcat version of the installation. The next step is to select the previous Tomcat installation directory through the browse (Brower) button, and then click "Finish" to complete the configuration.
But there is no server in my eclipse because the server plugin is not installed.

Install the server step:

Find Help->installnew software-> "Kepler" Repository (http://download.eclipse.org/releases/kepler)- >web,xml, Java EE and OSGi Enterprise Development->jst Server adaptersextensions (check this option)

Then the installation can be done all the way next.
You can also copy this directly: neon-http://download.eclipse.org/releases/neon/201703231000 (recommended)