The debugging mode commands are clear and concise.
Briefly, natural number n excludes the n-th species from the model,
[m n . . . ] excludes all species except for the
m-th, n-th, . . . (the number of species in square brackets is
not limited), :n sets the number of iterations after which the
program automatically switches (back) to the debugging mode to n (implicitly
n=100),
&n x sets the value of the
n-th unknown parameter to x, |n transforms the
stability constant of the n-th species from the "natural" to the
logarithmic scale (and back), r and R perform
"small" and "big" restart, q and x terminate the program
(q saves an image of the computation to the output
file), dot . and comma ,
switch the debugging mode off (each in a slightly different way). More
commands can be found in the reference manual.
If two or more commands are given in a single
sequence, they are processed sequentially
from left to right and, at long last, the next (at least one) iteration is
accomplished. Hence, the sequence of commands 1 2 3 is equivalent
to 5 3 1. If you want to exclude the 1st, 2nd, and 3rd species from
the model, you have to set either 3 2 1 or 1 1 1.