I'm not an expert on modifying DX, but I'd normally just use the codes listed in the "Cheats" tab: http://www.gamefaqs.com/pc/250533-deus-ex/cheats If those give what you have in mind it probably wouldn't take that long to type things out in-game.
I think you can also bind functions (e.g. spawn cluster of live LAMs) to keys using this method, but I can't remember the details off the top of my head.
DF: So why can a Marauder roll but a multiplayer Turian can't? Delta1-9: You are fighting female turian husks. You have reach but they have flexibility.