>I already had tested, I did not twirl in my environment (multi-user, multi-machines, etc).
>
>Also grids has the problem of mine is configured only by datasource. I am trying to write my proper routine for this.
>
>Thanks...

Check out article by Robert Pierce in one of the first UT Magazines.

Vlad Grynchyshyn was working on the class and even more promising to save everything in User's environment, but he didn't publish his work and I'm not sure, he finished...

May be you can contact him and work together on the class?

I'm wonder, if something already exists (beside the class mentioned), because it seems like a common requirement.