Hello, and thanks - didn't see the component forum
I was only trying to import the List class, because without it I get:
1017: The definition of base class List was not found.
And this error is actually pointing to line 37 in the Tree class, not in my Main document class... so I assumed it needed to be imported, but I agree - there doesn't seem to be one. Thus my confusion...
(Also I am aware of the YDN page, I've been using the examples in the last couple days playing around with their stuff.)