Custon/New Class

[lokisage 0]

hello guys, i need some help here... 

 

Well I have a doubt here, I'm creating a new project with new classes and skills, but all the tutorials I've found to create new classes are obsolete and the source code of the tutorial are different than what I have 

I wonder if it is possible to create new classes, and it would involve the use of x-ray, I currently use 20120410RagexeRE.

Thank you!