Duplicating, deleting, or renaming layouts
You can duplicate, delete, and rename layouts using the Manage Layouts dialog box.
To duplicate, delete, or rename layouts:
In Layout mode, save the layout that you want to duplicate, delete, or rename.
Choose File menu > Manage > Layouts.
Select the layout, and click Duplicate. The layout name is duplicated, with Copy appended to it.
Note  If you have unsaved changes in the layout you’re duplicating, you’re asked if you want to save the changes. Click Save to save the changes in the original layout and include them in the duplicated layout. Click Don’t Save to discard the changes to the original layout (and no changes will be included in the duplicated layout). If you're duplicating multiple open layouts with unsaved changes, you see an alert for each layout. Clicking Cancel cancels duplicating the current and any other open layouts.
Select the layout, and click Delete, then click Delete in the alert message. You can’t undo deleting a layout.
Double-click the layout name in the list (or select the layout name and click Edit) to display the Layout Setup dialog box. For Layout Name, type a descriptive name, then click OK.
You can't copy a complete layout to another FileMaker Pro file, but you can copy and paste all of a layout’s objects into a layout in another file. Select the layout objects you want to copy, and choose Edit menu > Copy. Then switch to the layout in the other file, and choose Edit menu > Paste. If field names are not identical in both files, you will need to respecify the field you want each field object to display. For more information, see and Copying, duplicating, and deleting objects and Placing and removing fields on a layout.