store bookmark in a grid

Greetings

I am using an unbound flexgrid to display information from a recordset, plus other rows that are not in the recordset. For the recordset data I would like to have a link between the row and the recordset, and the recordset.bookmark is an obvious choice, (as it would allow me to easily get the recordset applicable to the row).

Question: Is there any way to store the bookmark in my Flexgrid, in a way that will let me use it later to get the record?

I note that I get no error from MSFlexgrid.TextMatrix(intGridRow, intGridCol) = RsTrans.Bookmark but do get an error when trying to use it. (RsTrans.Bookmark = MSFlexgrid.TextMatrix(intGridRow, intGridCol)

I guess I could save it in a varient array, and then store the array number in the grid, but I was wondering if there is a better way?

Because not all the db accept the use of Bookmark, I store the necessary data to directly read the record... sometimes in zero width columns to hide them