HP Pioneers ROM Dumping - Need help

[RPLman]

Hi Guys,

I'm following "Hp Pioneers Rom Dumping 0.2" Document.
https://www.hpcalc.org/details/7847

(5.3) Entering the program machine code - Very confusing.
I'm trying to Dump HP42s Rom.

There's a picture of a Hp27s showing the code entered at address 52000
all on one line. Is this correct?

I could enter one or two numbers in on one line, but I'm at a loss on how to type in more code on the same line, the memory scanner would jump to the next address before I could enter another piece of code
I seem to be missing information on how to navigate the memory scanner.
Can you please help.

Thanks