[UlfHJensen]

I have a document containing several bookmarks, each a new letter for
revision; A, B, C...G. For each new version of the document, a new field and
letter is entered by the responsible. This procedure is ok (for now) and
works fine.
In the header of my document I would like the latest revision letter to
appear in a field.
How do I program my way out of:

Check if bookmarks until last filled is found
Clear field in header
Insert latest (last filled bookmark) revision

Any suggestions appreciated.
--
Best regards
Ulf