This is a very simple plugin mostly done in the config, it simple changes /list to show only staff. Its very mush like other plugins only much more complex on my end to make it easier on your end.
You start by going into the config and editing it how you like. Then you reload your server do /list and like magic the /list is changed.
The config is quite simple. It goes by the common color code &1-9 and
You start by going into the config in the FTP It must be in the FTP
Then you edit the /list to your liking I suggest just following what already put up there.