Using 2.5D within a class

Getting Started Newbie Questions
#1

If I make an object in my level1.lua I can position it as I like with object.path.x1, etc. However,  when I use a class(which I have in a separate file), I can neither use object.path.x1, nor self.path.x1. I get an error that says “attempt to index field ‘path’ (a nil value)”  

Any ideas?

#2

The “self” I was referring to was a group, not an object. Mystery solved.

#3

The “self” I was referring to was a group, not an object. Mystery solved.