This CSS will allow logged in user as an admin to see all users and admins in the users’ list.
However, users will only see admins in the user’s list.
body:not(.moderator) #list-frame #list > div:not(.admin) {
display: none;
}
If you do not want to show the user in the users’ list, you can use the next CSS to hide users but keep admin visible.
#list-frame #list > div:not(.admin) { display: none;}
To know how to edit web CSS, click this link.
Yes, you can.
If you do not want to see the mentions option menu when you type @.
Simply use CSS to disable it.
To disable the mentions option, you just need to paste this code on your CSS editor.
.mention-tooltip {
display: none !important;
}