Page down not working for BDC

Hi all,

I have written a BDC to call transaction OASV. I have to fill a table control which has initial 10 lines in display. I will have more than 10 items to fill in the table control. But while recording through SHDB i dont get the recording for the page down. However I tried to write the code my self with the OK_CODE as =P++. Still it is not working. It is over writing the lines again when the next set is added. Pls guide me in this.

Thanks and Regards,

Anu.