Final Draft 12 offers Focus Mode:
In Final Draft 9 and later, full-screen mode displays the current document (whether Pages, Cards, Scene View or any combination of views) without the menu bar, toolbar or ruler at the top of the screen and with the Final Draft document window maximized.
To enter full-screen mode: Go to View > Enter Full Screen; the menu bar, toolbar or ruler will be hidden and the Final Draft document window will maximize on your screen.
The keyboard shortcut to enter full-screen mode is Control + Command + F.
To exit full-screen mode: Move the mouse arrow to the very top of the screen and hold it there until the menu bar and toolbar are displayed. Go to View > Exit Full Screen; the document window will be restored to its previous smaller size and the menu bar, toolbar and ruler will be visible again.
While in full-screen mode, the keyboard shortcut to return to the regular view is Control + Command + F.