How do I enable commands on my Minecraft server?

How do I enable commands on my Minecraft server?
To enable command blocks on your Minecraft server:

Log on to your server’s control panel and stop your server.
Once your server is offline, on the left side click Configuration Files.
In the Configuration Files area, click Edit File next to the server.
In the server.
Set the Enable Command Blocks setting to True.

To enable command blocks on your Minecraft server:
  1. Log on to your server’s control panel and stop your server.
  2. Once your server is offline, on the left side click Configuration Files.
  3. In the Configuration Files area, click Edit File next to the server.
  4. In the server.
  5. Set the Enable Command Blocks setting to True.