Google Search: filemaker referencing the database layout: "Is there a calculation involved in determining the layout number? If so, set a global number field in the second file to the result using any relationship (if there isn't one, create one based on a calc field in each file = 1) then use the Go to Layout by field value option, referencing the global number field. If there is no calculation involved, if merely choosing the button tells you which layout the user wants to go to, there is no reason to pass the number at all. Use the method described in my previous post."