How to move up/down between pages

Hi, I make use of pagible treegrid, but when i move up a row at the top of the current page, it should move up to the bottom of the previous page. However, it doesn’t do it.
Only if I refresh the page, it does.
Even if I reload the XML making use of mygrid.loadXML(…), It doesn’t work.
How to realize this function?

thx!

Are you able to reproduce this issue here dhtmlx.com/docs/products/dht … aging.html ?

yes.
If I expand a branch, pages increase automatically.
and when close al branch, pages decrease.
Due to this, I have to change to another way to realize it.

I want to multi-select rows at the same level in the grid, and these rows could move up/down/top/bottom keeping their original sequence(within the selected rows).
I now firstly send data to the server and process them, and update in the DB, and then reload the XML at client. But thus, I have to save and restore the branch state(open/close) and the selections.