I installed the json-mode package, then added this to my .emacs:
(require 'json-mode) (add-hook 'json-mode-hook 'hs-minor-mode)
After opening a json file, I used Describe-variable on hs-minor-mode and found it was set to true.
But when I try to use any of the keybindings listed on Hide Show they don't work.
If I try C-c C-c for example, it says it is undefined. If I try C-c ESC C-h as shown in the example, the help window opens. How do I make this work.