Unable to change a RFC destination for SyncBO ID

Hi all,

I'm Unable to change a RFC destination for a pricing extractor SyncBO ID, through the transaction MEREP_PD

- Need to change the destination for SPE_ACCESS.

Also tried from the steps provided in,

http://help.sap.com/saphelp_nw04s/helpdata/en/85/ef1db00591674691f01edc57606d35/frameset.htm

Can anyone help me out with this.

Thank you in advance