How much of a group has to fit below its own header before the group may start on a page — guards against an orphan header stranded at the bottom with its rows overleaf.
minimum body rows that must fit alongside the group header, or the whole group moves to the next page
How much of a group has to fit below its own header before the group may start on a page — guards against an orphan header stranded at the bottom with its rows overleaf.