Hydra

(defhydra yt-hydra/help (:color blue :hint nil)
  "
_f_unction: Documentation for a function
_v_ariable: Documentation for a variable
_i_nfo: info mode
_G_oogle: search google
_d_ictionary: search meaning of a word"
  ("f" describe-function)
  ("v" describe-variable)
  ("i" helm-info-org)
  ("G" helm-google-suggest)
  ("d" voca-builder/search-popup))
(global-set-key (kbd "<f1>") 'yt-hydra/help/body)

hydra

(require 'hydra)

(defhydra hydra-search (:color blue
                           :hint nil)
  "
Current Buffer   : _i_search helm-_s_woop _a_ce-jump-word
Multiple Buffers : helm-multi-_S_woop
Project Directory: projectile-_g_rep  helm-projectile-_G_rep
"
  ("i" isearch-forward)
  ("s" helm-swoop)
  ("a" ace-jump-word-mode)
  ("S" helm-multi-swoop)
  ("g" projectile-grep)
  ("G" helm-projectile-grep))
(global-set-key [f5] 'hydra-search/body)