I am trying to do a 'merge' for printing a series of pages with sequential
numbers on them, something like a cash slip book.

I need to set up a variable that I can preload with a starting value, and
then have this 'field' appear three or four times on every page, with the
starting number incrementing with every appearance.

Currently I am creating an Excel spreadsheet, filling a column with the
required number series, and then mailmerging that.

Things I can't manage: How to add a custom field (variable) to the existing
mailmerge fields?
I also can't seem to get field operators (such as + - * ) to work - I insert
a pagenumber field on the page, and a formula field {=PAGE + 1}, but the
calculated field only updates when I create it, or press F9, but does not
recalculate evry time the page prints.

There must be a simpler way :-(

Any assistance much appreciated :-)
--
Willie van Rensburg