In a thread, a while ago, @katsulynx wrote, I've looked all around, but I can't see an answer to that question. If anyone is up for making a tutorial on this in the resource manger in the Tips and Guides section, I bet it will get a lot of positive votes. It's core functionality and a lot of people might know how to write PHP, but might not know how to use $rendererStates or $formatter. I know I would! Even just having some example code with a couple of comments would be huge if someone has written one of these and has it hanging around. Add in a screenshot from the ACP, and you have a pretty solid contribution to the "Tips and Guides" section of the RM.