Create a timeline view for the current subtree of an org-mode file. Fastest way to have overview of any projects or sub-projects dates (see: orgmode.org)

org_tree_timeline

;; Note: you need to create the ~/tmp directory in your home folder for this to work: 

(defun org-agenda-make-timeline-for-tree ()
  "make a timeline view in agenda for current tree"
  (interactive)
  (org-copy-subtree)
  (find-file "~/tmp/agenda_tmp.org")
  (beginning-of-buffer)
  (let ((beg (point))) (end-of-buffer) (delete-region beg (point)))
  (org-paste-subtree)
  (save-buffer)
  (org-timeline)
)

(global-set-key [C-f9] 'org-agenda-make-timeline-for-tree)

Thank you for a very useful function. It works great.
-jay