Portal Presentation in Filemaker 7
FileMaker 7 introduced a solution to a familiar problem found in versions 6 and prior. That problem was a lack of bidirectional relationships and the "one table away" dilemma. If you don't know what "one table away" means, when considering your database, then watch this video for a good understanding.
The solution this video provides is showing portals on a designated layout that is more than one table away. For example, using a customers layout to show both invoices and line items for a selected invoice. Learning what this video teaches, will show you how to place pretty much any portal on any layout - no more complex calculations used to "pipe" data through files.