Newcomer
You can make ChatControl behave differently for players that spend less than a configured time on your server, and/or is located on a certain world.
Newcomers can have the following attributes:
- Different permissions
- Get more warning points for breaking rules (stops new players who just join to spam)
- Have chatting or seeing chat disabled
- Have certain commands disabled (blacklist or whitelist are both supported)
You can configure everything in the Newcomer section of settings.yml.

Newcomer Message Of The Day
You can also send different welcome message to newcomers using Motd.Format_Motd_Newcomer
option from settings.yml.

Newcomer Variable
The {player_newcomer}
variable returns true or false. You can so use it in JavaScript conditions to show a format in Formats or custom JavaScript Variables.