Download this installer to add a menu entry in the File menu of InDesign CS5.x,
CS6 or CC to invoke BigPicture.
BigPicture 5 or 6 by default now installs in the Applications folder of your
main hard drive.
With the menu plug-in installed, you can also assign BigPicture a keystroke
using the standard keyboard shortcuts editor of InDesign (Edit > Keyboard Shortcuts).