• Display helm in a separate frame
  • Enable globally frame for all helm sessions
  • Allow commands using with-helm-show-completion displaying helm in a frame
  • Specify which command have to display its helm buffer in a frame
    • Let helm actions use frame if initial command was using a frame
  • Specify the size of frame
  • Quickly make a helm form using frame
  • Tip

(setq helm-display-function #'helm-display-buffer-in-own-frame)

(setq helm-show-completion-display-function #'helm-display-buffer-in-own-frame)

This will affect commands such `helm-lisp-completion-at-point`, `helm-dabbrev` etc…

Add your command to `helm-commands-using-frame` with customize interface (customize-variable) or in your init file e.g.

(add-to-list 'helm-commands-using-frame 'completion-at-point)

(setq helm-actions-inherit-frame-settings t)

Set variables `helm-display-buffer-width` and `helm-display-buffer-height`.

(with-helm-in-frame
  (helm :sources (helm-build-sync-source "test"
                   :candidates '("foo" "bar" "baz"))
        :buffer "*helm test*"))

Bind some keys to the functions provided by your window manager to resize helm frame to the left, right, top and bottom. For example xfce allows this with its mosaics functions.