Different world name to chat prefix?

Hello,

I'm using permissions3, ichat along wih PEX (as some plugins use Pex)

I've added, through iChat, prefixes for my players - my Guests have the world name by the name
Example: <PVP> RowdyKingDippy:

I was wondering, could I have my main world (called world) and name it 'Survival', in-game?
For example, If I set the time of that world it would say: RowdyKingDippy set the time of 'world'
But the prefixes for Guest players would be: <Survival> RowdyKingDippy:

Not sure if that makes sense, thanks anyway!