Please ... by all that is holy, USE THE ATTORNEY !
So what if it's just a "simple motion". That's their job. They go to court and file motions. They also do a lot of other stuff, but motion filing is part of WHAT THEY DO.
Your job is to let the attorneys do their job. Trust that they know what they're doing, and that they will do their best for you. This motion may seem simple, but a legal proceeding such as this is like one of those old pocket watches ... have you ever taken an old watch apart and looked at how much stuff it takes to keep time? There must be 100 little dials, gears, springs, screws, levers and other widgets in there, but my point is this: This motion might be simple, but it's part of a bigger whole, just like one of those tiny little springs inside the watch is part of the whole mechanism. Mess with that one little screw and it affects the everything, so this motion may be simple, but it might affect other things that you're not aware of.
Pretty please - just let them do it. It's their job, and it's what they do.
*big hug* and best of luck !!