Welcome to our community, Karen
Wow, you asked and answered in the same post! (couldn't
resist a bit of teasing, as you marked your post as the answer)
Yes, RoboHelp may have projects with multiple folder levels.
They can go quite deep! RoboHelp produces several output formats
for both on-line and off-line use. None of the outputs require any
special licensing.
It's an awesome product. I've used it almost daily since
1992!
Hopefully that helps... Rick