Proper script syntax - Adtran

Hello, I'm having some trouble figuring out script syntax for our Adtran routers.

I would like to use NCM to automate the downloading of flash firmware files. In the CLI, it would look like:

# copy tftp flash

Address of remote host? 10.x.x.x

Destination file name? dest_filname.biz

How do I anticipate the prompted questions and get the script to execute properly?

Then I'd like to set primary and backup flash images:

boot system flash < Primary > < Backup >

I have no problems doing this in the CLI; just can't seem to get it to work through the NCM scripts.