Arranging windows in FileMaker Pro
You can use the following commands on the Window menu to work with open windows in FileMaker Pro.
You can also open multiple databases at the same time, as well as open multiple windows for a single file. For more information, see Opening files and Opening multiple windows per file.
Choose Window menu >
Show Window > window name
Note  If a window’s ability to resize is restricted by a script, the window can’t be arranged using commands in the Window menu.