scroll with keyborad

Hello,
How can I scroll for the grid with the arrows of the keyboard, I use IE.
I seek to be able to move for the rows with downKey,upKey, leftKey...

Another cuestion, which is the capacity of a cell from an AW.XML.Table?
I have a memo field in my database (access), but when I execute a query and put the result in an AW.XML.Table, it (the cell of the table) only contains 255 chars. of my memo field

Thank´s

The grid already supports scrolling with keyboard - using up/down, pageUp/pageDown, ctrl-home/end, left/right keys.