Hide / Filter result rows

Thanks for the reply!  I am not sure if this is a permission issues (unless I am missing what you meant in your statement). I know there is a way to access the relationship tabs and hide / show columns with an "onFormPopulated" method for the source form.  I am looking for something similar, however, I think I have to go one step deeper and find the results coming back on the relationship.  It could be 1 to many.  As I process the results (loop?) I need to look at each record and see if I need to hide/show the record on a 1 by 1 basis.  I would be looking at a property record to determine if the entire result should be displayed. Let's assume for a customer tab I wanted to ONLY show results that had a customer with a "region" property = "NC", however, there could be other regions ("PA", "NY", "OR", etc) results mixed in.  Is there a way to filter out based on the "region" property? Thanks again for the reply.