csv export option to export all records

it should be the default to export all matching records, not only the one limited by the client (usually 80)
currently only the records selected in the client are exported
as I mentioned already multiple times user (including me) tend to forget that they only see (often random) subsets and remark the error only if the error is obvious - i.e. expecting some 100 records - the result are only the usual 80.