Question - How to hide command outputs from the chat

How could I hide command outputs from the chat? I am sure that there is a solution to that since Mineplex PE hasn't the /op, /deop, /ban, /version, /kill, /kick etc. commands. Any answer will help me.

 

Mineplex PE runs a server software called MiNET, AFAIK.

 

Thanks for your reply. I use server.pro, so I am not able to use MiNET, AFAIK. Could you help me doing this with PocketMine?

 

The only thing I can think of is overriding all the commands or using PlayerCommandPreProcessEvent and then implementing the command features without the messages.

 

OK, thanks