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Description
As of now, if I have to add a multi line input for directives or rewrite menu from minibuffer, I have to create it outside and paste. It might be worth it to support S-<return> to enter a newline instead of submit in the minibuffer for these inputs. I do something similar in yap, but not submitting a PR as I don't know if this has any side effects.
(let ((minibuffer-local-map (copy-keymap minibuffer-local-map)))
(define-key minibuffer-local-map (kbd "S-<return>") 'newline)
(read-string "Prompt: " nil 'yap-prompt-history (current-word)))