i was bored and had a couple of minutes....according to the man pages, the only adjustable-width field is the COMMAND field.
i just took a quick glance and happened to notice that, and it refers to the COMMAND field as "unique," so i guess youd have to find another way to get what youre looking for. :-/
can you use ps or something else to narrow down a process by pid and username? *shrug* just a thought, i havent done much more than fiddle around on server-related stuff, especially getting picky about things within the CLI, so i dont know what a good solution would be.