Responses to the above:
3Rail - no specific question. I just like having the manuals. Also, your second post - I wrote to Atlas and they got back to me with the manuals. I got those manuals after my first post.
RoyBoy - yes, that is what I assumed about cruise control - I just don't know how that is used and where it is used.
I also heard back from Atlas on the purpose of that switch. I just don't know how/where I would use cruise control.