Ok, if a bookmark is really just 12 bytes, I don't worry. I wasn't
sure how much it takes up. So it does not depend on the primary key
fields?

The matter is not what *I* want to do, but what the end user will do
with the application. It would be difficult to explain why he can
genrally select all records in the grid, but the program might behave
slow if the chooses to delete them.

I guess I was just too cautious with the size of the bookmark list.

Mirco