Hurco BMC-25 Ultimax-2 G Code

Hello. At me is HURCO BMC-25 Ultimax2. In manuals it is not specified as to create the program in G-M Code. Help please with the information. What commands are used, and as the shot, the program is formed.:(
How it is possible to keep parametres CNC on a diskette?
Where it is possible to take numbers and the description of parametres? I wish to increase a range of movement Z Axis. And to calibrate all Axis. I will be very grateful to you for any information. Best Regards.

If you don't have ISNC the code is very similar to an old Bridgeport code. The z depths on a drill cucle is unsigned incremently from where you are starting and the I's and J's on arcs are absolute values...