Robin,
I think you need to put the copy of hello after and outside of your iterate tree. So when the iteration is all done, then copy hello. As it is now, the copy is happening on every iteration and I don’t think you want that.
Bill is correct about the $ in the address path.
Jim Kosloskey
email: jim.kosloskey@jim-kosloskey.com 30+ years Cloverleaf, 61 years IT – old fart.