When I paste the second gridview the first gridview moves down.
This can happens if you had some docking logic, please check Dock property of both grids.
If it's doesn't matter for you how it's looks in design time, you can place control at any form part, and even made it invisible by default. Then before form show, for example at load form event, just copy location and width, even parent (in case it's some child panel control) and any other properties from first to second grid and set first grid visible false and second true, or just bring to front second grid if it's visible. Actually as
lukeer wrote.