Add Time Stamp / Watermark in a Analysis OLAP report

Hi,

I am trying to figure out if I can add a time stamp like (last refresh date & time just like we have in a webi report) in a Analysis OLAP report.
I am also trying to add background image (like a watermark as Confidential / Draft) in my OLAP report or even if I can add it anywhere in the OLAP report I am ok with that.

Has anyone done this before & can shed some information on how to do it, it will be very much helpful.

Regards,

Ash.