whatever field your are grouped (that you want to suppress on the last record for this group level) on use the next() function. This evaluates to see if the next rows value = the current rows value.
onlastrecord or next({table.field})<>{table.field}
e.g.
GH1 (using Customer.ID as group)
GH2(using Sales.No as group)
Details
GF2 - has line drawn on it
conditional suppression using the formula
onlastrecord or next({customer.ID})<>{customer.ID}
GF1
Edited by DBlank - 30 Dec 2009 at 12:35pm