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### 5.4 Miscellaneous Customization

User Option: ido-mode

  This user option determines for which functional group (buffer and files) Ido behavior should be enabled.

User Option: ido-case-fold

  If the value of this user option is non-`nil`, searching of buffer and file names should ignore case.

User Option: ido-show-dot-for-dired

  If the value of this user option is non-`nil`, always put ‘`.`’ as the first item in file name lists. This allows the current directory to be opened immediately with Dired

User Option: ido-enable-dot-prefix

  If the value of this user option is non-`nil`, Ido will match leading dot as prefix. I.e., hidden files and buffers will match only if you type a dot as first char (even if `ido-enable-prefix` is `nil`).

User Option: ido-confirm-unique-completion

  If the value of this user option is non-`nil`, even a unique completion must be confirmed. This means that `ido-complete` (`TAB`) must always be followed by `ido-exit-minibuffer` (`RET`) even when there is only one unique completion.

User Option: ido-cannot-complete-command

  When `ido-complete` can’t complete any more, it will run the command specified by this user option. The most useful values are `ido-completion-help`, which pops up a window with completion alternatives, or `ido-next-match` or `ido-prev-match`, which cycle the buffer list.

User Option: ido-max-file-prompt-width

  This user option specifies the upper limit of the prompt string. If its value is an integer, it specifies the number of characters of the string. If its value is a floating point number, it specifies a fraction of the frame width.

User Option: ido-max-window-height

  If the value of this user option is non-`nil`, its value will override the variable `max-mini-window-height`, which is the maximum height for resizing mini-windows (the minibuffer and the echo area). If it’s a floating point number, it specifies a fraction of the mini-window frame’s height. If it’s an integer, it specifies the number of lines.

User Option: ido-record-commands

  If the value of this user option is non-`nil`, Ido will record commands in the variable `command-history`. Note that non-Ido equivalent is recorded.

User Option: ido-all-frames

  This user option will be passed to `walk-windows` as its all-frames argument when Ido is finding buffers. See Cyclic Ordering of Windows in GNU Emacs Lisp Reference Manual.

User Option: ido-minibuffer-setup-hook

  This hook variable contains Ido-specific customization of minibuffer setup. It is run during minibuffer setup if Ido is active, and is intended for use in customizing ido for interoperation with other packages.

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