ido-find-file-read-only-other-window
ido-find-file-read-only-other-window is an interactive autoloaded compiled Lisp function in `ido.el
'.
(ido-find-file-read-only-other-window)
Edit file read-only in other window with name obtained via minibuffer.
The file name is selected interactively by typing a substring.
For details of keybindings, see `ido-find-file'.