In 1987 the 'a' Studio released a package called Commodore Multifile Transfer (CBM-MFT):

I think this is one of the mostly unknow Enterprise accessories. Currently I not know anyone who is have the original package.
Now we talked about these things in the Hungarian forum, and now szalai56 uploaded
the program, and two hand-draws of the cable.Now I try to make one cable

Features of the package: can read/write Commodore disks via 1541 drives. And can print to Comodore compatible printer.
The program define the CBM: EXOS device.
For example save to disk:
SAVE "CBM8:PRG.BAS"
EXOS commands:
:$
display directory of the disk
:@
read the error channel of the drive
:@ command
send command to the drive, for example format disk:
:@ N:disk,id