I think what you are asking for is a pointer or reference to a variable? I find it hard to see how that fits in to the event system, and with event variables there are some tricky issues around the variable scope as well (e.g. should you be able to pass a pointer to a variable to somewhere outside of its scope? That is an error in some languages like C++). Either way the solution would probably be to reference variables by a string of their name, and that's exactly what the Dictionary object already does!