Dear Sebastian, Many thanks for your helpful message.
Sebastian Miele (2019/11/27 02:55 +0000): > After opening the agenda, inspection of the buffer-local variable > major-mode (e.g. by C-h v) reveals that the major mode in the agenda > buffer is org-agenda-mode. A search for a variable containing > "org-agenda", and "map" reveals that most probably org-agenda-mode-map > is the keymap used there. It follows the usual naming scheme for major > mode maps. > > After (require 'org-agenda) it will be possible to (define-key > org-agenda-mode-map KEY BINDING) in an init file. Thank you so much for also having taken the time to explain how you found it, that's very helpful! Best wishes, Shérab.