Comprehension of classes

[Nabru]

Hi, most of you knew me as a decent scripter, but after 2 years of playing WoW I forgot most of my knowledge of GS2. Something I never did understand was classes and how to utilize them. I know in C++ classes can be used for a multitude of useful things, I'm wondering if the same thing applies with GScript?

For example: Can I call a class(join(X); )

and then later in the script use a string or command set in that class without error? If this currently doesn't exist I think it'd be an awesome idea..