I'm sorry if this is in the documentation somewhere — I can't find it.

I'm using the command-line version of HTTrack and would like to specify a
different user agent. The documentation reads as follows:

Browser ID:
  F  user-agent field (-F "user-agent name") (--user-agent )
 %F  footer string in Html code (-%F "Mirrored [from host %s [file %s [at
%s]]]" (--footer )
 %l  preffered language (-%l "fr, en, jp, *" (--language )

What are my options for specifying user agents? How should I type the names
out?
Thanks!