I have layouts with several portals. I have to guess at the maximum number of rows when creating a portal. That makes a very long layout in layout mode. And no matter how many rows I have specified, eventually data gets cut off (not enough rows).
Currently when a portal is created the developer specifies the number of rows. FileMaker shrinks the layout to eliminate dead space (slides up)when there are fewer rows than what is specified. There should be an option for unlimited rows where FileMaker would grow the layout as rows are added.