You will most likly need to add a regex on RustAdmin to show messages with [PM] in them.
Sigh, that's what I was afraid of. I don't believe it's possible to add more than one, since I already have the one for BetterChat :( Thanks so much for the response!
In response to MisterPixie ():
You will most likly need to add a regex on RustAdmin to show messages with [PM] in them.
RCON responses are something we'll be adding to the universal API for Rust when able. Should handle this somewhat I believe.