>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.

The way I see it, you'll be better to define a class on your own. You may take ideas and approaches discussed in here so far, combined that with your specific requirements, and you could have something nice in a short time.

For us, we only save the window's position per user but not the definition of each resizing a user might do at run time.