Modify collision handling with command line?

How can I modify the collision configuration with command line? I don't see anything to do this, I want to number the collision instead of ignoring them and not do anything.

Options such as collision rules, pair renaming etc are saved in the "Method List" file (.aren) along with the actual methods in the batch. Collision rule settings are saved in the [namecollision] section of the .aren file.

eg:
[namecollision]
separator=_
pattern=
rule=append_number

You cannot modify these settings from the Advanced Renamer command line.