Hello, i will show you my idea and im think you like it. All of us know a option in trigger "Show text 'A' in the chat with color 'B' " but that everyone can see.
This option will be in trigger "Show text 'a' in the chat to player 'B' ". That will show a text only for one player which one slected in trigger. I think this option be a helpful for maps.
P.S Sorry if i make mistakes