Approve all on every page of the grid


I have a grid with approve all option, what only takes effect on the actual page. So if I click to Approve all above the grid it marks the items as approved on the actual page, but if I go to the next page those are not checked. I couldn't find out how could I modify it to take effect on all pages. Is it possible?

If not, my othet question is how can I customize the default page size (how many items to show on a page) for one single grid? I've found the global setting, but I would like to modify it for only one grid.

Best Regards,

Tamás Imre