WP 34S Libraries and Programs

[AnalogJoe]

oops Im in trouble here, Im trying to retype the entire code through the keyboard, but there are a LOT of things I have no idea what the code means, for instance:

****LBL 11 // [A] within editor: Back to square 1
again:: # 1 // start with (1,1)
STO I
STO J

I highlighted in bold again:: # 1 what does that mean?, is it like a label, or a command or what? how am I supposed to enter that?

or for example here:

CL[alpha] // Display row and column
[alpha]IP I
" "
[alpha]IP J
" "
FS? 00
"f"
What about those " " and "f" what does that mean?