Yes, I have found out that you can run XS code without using chat. This is very useful since when running it on chat it can cause it to be almost impossible to chat to each other during a game. You can do it with any trigger that produces a message. Ones I have tried which have all worked are:
I am sure there are many others that work too. This is useful for people who do not have XS user code and want to do coding or for people who random map script who want to do code but can't use XS use coding because not everyone has it and so the game will sync.