> Dear Uwe,
> * Uwe Brauer <oub@mat.ucm.es> [2020-12-10 22:45]:

> (require 'dired-x)

> (defun dired-to-org-links ()
>   "Generates Org links for Dired files and stores in memory. Yank
> it in other buffer"
>   (interactive)
>   (let* ((files (dired-get-marked-files)))
>     (when files
>       (kill-new
>        (with-temp-buffer
> 	 (dolist (file files)
> 	   (let* ((base (file-name-nondirectory file))
> 		  (link (format "[[file:%s][%s]]\n" file base)))
> 	     (insert link)))
> 	 (buffer-string))))))

Thanks, that is very nice. 
I played a bit around with org-fstree, that is also useful.