I wouldn't bother. Fire up MS Word and use your journal's provided template.
Many A.I. or maths conferences won't provide a Word template, only LaTeX. Other conferences and journals I've been involved with are Word only. Trying to fight against the default generally isn't worth the pain.
Even if you don't want to do it personally, you can ask the maintainer of the relevant package to add a certain feature and if you're lucky he agrees and does it, or you can pay someone to do it.
It's easy to forget, but you do have the total freedom to make it work for you, unlike proprietary office programs.